Tag Archives: Tidepools

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7 Ways to Play in the Mud on Kids to Parks Day

When my daughter was in pre-school, we used to rejoice when she came home with dirty feet. Sand between the toes? Yes! Caked-on mud? Bring it on!

Why? While we weren’t necessarily enamored with long scrubbing sessions in the bathtub (though those were fun, too), we knew that muddy feet–and fingernails and knees–meant that profound play was happening. We since learned that dirt can even be good for your health!

The 7th annual Kids to Parks Day, Saturday, May 20, is a national day of play. You can register for one of more than 1,200 events around the U.S. and join the fun, get out with your family and friends, and win prizes at the height of spring.

You can also enjoy Kids to Parks Day, or any kids-to-parks day on your own, in your local playground or park. Here are a few suggestions for creating some memorable, and maybe a little muddy, experiences.

… Before you head out, don’t forget to grab some good sports shoes that are rugged enough for play; affordable enough that you won’t be afraid to let your kids wear them outdoors; and ventilated, washable and drainable for those times when a little mud happens, or is even sought out. These are from Kids to Parks Day sponsor, Northside USA. (Keep reading for a giveaway featuring Northside USA Shoes!)

Make a Mud Pie or Garden Soup

The perfect kitchen may be outside! Find dirt or sand and a water source and pour batter-like mud into used measuring cups, pans, cupcake and pie tins, and pails. Decorate with leaves, petals and rocks. Or pour water into cups and bowls and add flower petals, food coloring or glitter inside to make potions and soups. Make a bench or a tree stump your cooktop, and “bake” away without any of the typical kitchen clean-up.

Read more from Jackie at Happy Hooligans (where these fantastic photos come from):

Garden Soup
Mud Kitchen Activity

Adopt a Flower and Watch it Grow

Do you often return to the same park or garden? “Adopt” a flower for the season and watch it grow over time. Bring a ruler or yardstick or measure it against your own body. Have space at home to plant a flower? Get some large seeds that little hands can tuck into the dirt, and plant easy growers like nasturtium, pea, beans, sunflowers or gourds. Growing edibles? You might want to sing this song:

Dirt Made My Lunch

Dirt made my lunch,
Dirt made my lunch.
Thank you Dirt, thanks a bunch,
For my salad, my sandwich
My milk and my munch ’cause
Dirt, you made my lunch.

Read more:

Beginner’s Guide to Getting Your Garden Growing
11 Ways to Make Gardening Extra Fun for Kids

Make and Sail a Paper Boat

This is a timeless idea that we got from our friend, Curious George, who made boats from the newspapers he should have been tossing on his paper route. Make your own paper boat and sail or race it in a creek or other body of water. Some of these boats have strings attached, so they can be launched without actually sailing away.

Play Pick Up Sticks or Pooh Sticks

The original pick-up sticks were ancient fortune-telling devices, but you can play this game anywhere, indoors or out, without even attempting to see the future. Hold your sticks in a bundle, then release them so that they land in a pile. Take turns trying to remove one stick at a time, without disturbing any other sticks. When a stick from the pile is disturbed, the next person takes a turn. When all the sticks have been removed from the pile, players total either their number of sticks – each one is worth one point. Near a creek or stream? Try your hand at Pooh Sticks, a stick-racing game inspired by Winnie the Pooh.

Build a Sandcastle or Make Sand Art

It isn’t officially spring until you get some sand between your toes at a beach park or sandbox. Pack the wettest sand you can find into mounds to make castles or carve them into other designs.

Decorate your creations with flags, or twigs, shells or other found objects.

Raise your own tadpoles

What better way to explore the cycle of life than to raise tadpoles and then release the frogs back into ponds and streams? Kids won’t soon forget this fun project. Looking for more pond activities? Try making a collecting cattails, making a water scope, or one of these other activities for a day at the pond from KCEdventures.

Photos: Rainy Day Mum, KCEdventures

Explore a Tidepool 

When the ocean recedes, the mysterious undersea world is revealed, and creatures like barnacles, crabs, periwinkles and sea stars can be seen if you walk among them gingerly. Read how and where to explore tidepools and how to preserve tidepool habitats for the enjoyment of others.

See more photos from our trip to the tidepools.

How will you play outside on Kids to Parks Day?

Register to be counted on Kids to Parks Day and you may win one of many cool prizes, including a special camping package from The North Face (4 sleeping bags, tent, and duffel bag), or one of the additional prizes from CamelBak (family hydration pack), Eastern National (Jr. Ranger package including a park pass for a whole year), and National Geographic (a set of kids’ books about nature and parks). How great is that?

Plus, every person who signs up will receive a special promo code from Northside Shoes. Keep checking the list of Kids to Parks Day events as we get closer to May 20th. There are new park events added each week!

… And, remember how I mentioned the importance of having shoes you can feel good about wearing for mud and other outdoor play? I’m giving away a pair of Northside Shoes! To enter, take the pledge to play outside on Kids to Parks Day Saturday, May 20, and then leave a comment here, telling me that you pledged and how you plan to play outside. If you have a favorite mud-play activity, I’d love to hear about that, too. The giveaway will end Friday, May 19, 11:59 p.m. PST. A random winner will be chosen. The winner must reside in the U.S.

Good luck!

Photos: Susan Sachs Lipman, Public Domain, Happy Hooligans, Rainy Day Mum, KCEdventures

Our Trip to the Tidepools

Anna was at camp the last time our local tides were negative (that is, below a neutral tide line, revealing undersea creatures and plants that are usually covered by water.) So, when we learned about the minus tide last Thursday, we got up at dawn and went out to explore.

Our closest tidepool is Duxbury Reef in Bolinas. There is great tidepooling up and down the west coast. Directions to special Bay Area tidepool spots and detailed instructions on what to look for and how tides work are in my blog entry here. (The next minus tide will occur August 21.)

Summer mornings in the Bay Area can be foggy and cold, and we’ve shivered at Duxbury Reef before, so it was especially wonderful to be greeted with a relatively clear, pretty day at the beach. We threw on our aqua socks (you can wear sneakers), cuffed up our pants, grabbed guidebooks and cameras, and went down to the shore.



We went to the tide line and began looking around.


Sea life was everwhere — in the pools of water, clinging to rocks, and surrounded by colorful algae that seemed to breathe with the tides.

We found some glorious Giant Green Anemones.


This is a group of Aggregating Anemones. We learned that aggregates are offspring from the same parent. We gently touched their centers to feel them squirt and close up around our fingers.


This had to be to be the marquee creature of the day, the Ochre Sea Star, or starfish. We learned that starfish are omnivores and aggressive eaters.


This Hermit Crab appears to have made its home inside a Turban Snail’s abandoned shell. We got to see it walk.


A small Sculpin swam nearby. It was great to see so much evidence of a healthy ecosystem.


Anna made sure there was no Limpet living in this shell before she picked it up.


We found the algae to be very colorful. This looks like Coralline Algae.


.. And Surfgrass.


There were other people out tidepooling, but not many.


Anna was a real trooper. She had just gotten braces on the day before, and they hurt.



Mom, with the handy pocket guidebook.


.. And ubiquitous camera.



Photos by Susan Sachs Lipman and Anna Lipman

Other Slow Family posts you might like:

Tidepooling with Kids: Explore Undersea Creatures

Explore the Undersea World at Bay Area Tidepools


The undersea world is always fun to explore at low tide, when creatures like barnacles, crabs, periwinkles, and sea stars, who are normally underwater, become revealed. This summer, we in the Bay Area are in store for an especially stellar show, as there will be an unusual amount of very low tides, or minus tides, at times of the day when we can get out and enjoy them.

How do Tides Work?

Tides are influenced by the moon, whose gravity pulls at the oceans each day as the Earth completes its daily spin. That pull creates a high tide at the portion of the Earth where it occurs. Most places experience two high tides each day. The second one occurs when the moon’s gravity pulls on the spot exactly opposite it on the Earth. (The second high tide is usually not as high as the first high tide.) Low tides occur when the moon is first rising in the east, or setting in the west, and the strong pull is happening elsewhere. Full or new moons usually create higher high tides and lower low tides than moons in other phases.

Reading a Tide Table

Tides are relatively predictable, but not entirely, as they can be altered by factors like temperature, air pressure, storms, and wind. A tide table is like a forecast, as opposed to a rigid schedule. That said, tide tables are usually fairly accurate. Most tide tables read in military time (a 24-hour clock), rather than using a.m. and p.m. Tides are measured in feet, so a 2.0 tide means that the water is two feet high.

The intertidal zone, which is what you’ll be exploring, is the area that is revealed during a low tide and covered during a high tide. You can begin to see some creatures in this area when the tide is as low as 1.5, but your best bet for seeing a show is to visit when the tide is listed as a “minus tide”, which is an especially low tide. Try to time your visit to arrive before the time listed, so you catch the tide going out. Generally it goes out (becomes lower) for about two hours, and comes back in for an hour and a half, so that’s the window of time for the visit. You need to be aware of the time and the tides, especially if the beach you’re exploring is one that can become cut off from access during high tides, or is known for tides that rise quickly. (The best beaches for exploring intertidal life with children have easy access, even during high tides, and are not known for large waves or drastic changes. That said, visitors still have to be aware of the tides and the time.)

This is a fairly accessible tide table. There are others online, and others that can be purchased at bookstores and marine-supply stores in calendar form.

Bay Area tide tables often reference the tide time at Golden Gate. Be sure to follow any links to the adjusted times for different spots up and down the coast, as the tide times change based on exactly where the tide hits.


Upcoming Minus Tides

The following are days and times for upcoming minus tides. As mentioned, there is an unusual abundance of opportunities for visiting a tidepool this summer. Note that these are all minus tides at Golden Gate. Be sure to adjust the time for your tidepool spot.

Weds., June 24, 7:24 a.m., -1.9
Thurs., June 25, 8:11 a.m., -1.6
Fri., June 26, 8:58 a.m., -1.1
Sat., June 27, 9:45 a.m., -0.4

Tues., July 7, 6:28 a.m., -0.7
Wed., July 8, 7:00 a.m., -0.6
Thurs., July 9, 7:31 a.m., -0.5
Fri., July 10, 8:02 a.m., -0.3

Thurs., July 23, 7:03 a.m., -1.3
Fri., July 24, 7:46 a.m., -0.9
Sat., July 25, 8:28 a.m., -0.3

Thurs., Aug. 6, 6:31 a.m., -0.1

Fri., Aug. 21, 6:35 a.m., -0.4

Who Lives in the Intertidal Zone?

When the tide retreats, sea creatures can be seen clinging to, or underneath, rocks. These animals, as well as intertidal plants, are especially adaptable to their changing conditions. They are often also colorful and unusual. The animals you will likely see include limpets, which stick to rocks high in the intertidal zone, and their relatives, the chitons. Children may identify periwinkles, which have a snail-shaped shell, and tough barnacles, which cling to rocks and other surfaces. You may see sculpins, which are tiny fish, moving in the extremely shallow pools, or prickly sea urchins, or everyone’s favorite, the many kinds of starfish (sea stars). There will likely be many types of crawling crab. And you’ll probably also see anemones, which open and close around food, or a gently placed finger, and which squirt a bit when touched.

The best way to identify these various creatures is to pick up a field guide to local sea life at a bookstore or library. Some places also sell easy-to-reference cards that can be worn around the neck, saving you from fumbling with a book while out along the shore.


Some Places to Experience Tidepools

Pillar Point Harbor, Half Moon Bay. Pillar Point features a large, easily accessible tidepool area rife with creatures like sea urchins, sponges, sea anemones, and sea stars. This is also a commercial fishing harbor. Boats come in with fresh fish for sale daily, and there is a fishing pier.

Directions: From the South or East Bays, take Highways 101, 280, or 880 to Highway 92 West. Go north on Highway 1 in Half Moon Bay. Turn left (west) on Capistrano Road (signal light four miles North of Half Moon Bay). Take the first left into Pillar Point Harbor.

From the North Bay, take Highway 1 South seven miles past Pacifica. Turn right (west) on Capistrano Road, and take the first left into Pillar Point Harbor.

For more information, see the Pillar Point Harbor site.

Fitzgerald Marine Reserve, Moss Beach. This slightly rocky seashore is more natural than Pillar Point and provides a different experience. Its shallow marine shelf offers a very rich habitat with a variety of sea stars, crabs, mollusks, and sea urchins. There are species within this three-mile reserve that are found nowhere else in the world. Naturalists are often present during minus tides.

Directions: Take Highway 1 to California Street in Moss Beach, and turn west. Fitzgerald Marine Reserve is at the end of the street. You can also take Highway 280 to Highway 92 to the ocean, and then go north on Highway 1 to Moss Beach. The reserve is at the end of the street. The area is also served by SamTrans bus. This SamTrans site has more information.

For more information, see the Friends of the Fitzgerald Reserve site.

Duxbury Reef State Marine Sanctuary, Bolinas. Though in Bolinas, Duxbury Reef is part of the extensive Point Reyes National Seashore. Connecting to lovely Agate Beach, mile-long Duxbury is the largest shale intertidal reef in North America. It’s known for calm surf and relative privacy for visitors. Its very accessible tidepools are home to clams, limpets, urchins, anemones, and sea stars, among other animals. Duxbury Reef doesn’t have the amenities of the other tidepool areas, but it makes up for that with its ease of discovery and its array of sea creatures.

Directions: Take Highway 1 to the Bolinas turnoff, which is Olema-Bolinas Road. Be warned that the turnoff is often unmarked. You can also take the more northern Horseshoe Hill Road, which turns into Olema-Bolinas Road in Bolinas. Turn right on Mesa Road. Turn left onto Overlook Drive. Make a right on Elm and follow it to its end, or where it turns into Ocean Parkway, and park in the parking lot for the reef and beach.

For more information, see the Point Reyes National Seashore site.


Tips for Making the Trip Enjoyable and Preserving the Habitat

Tidepools are very sensitive environments that are easily damaged or even destroyed, so it’s important for visitors to be aware of the fact that they will be walking among, and probably on, living creatures. Remember that you are a guest in the animals’ habitat. It will also help to follow these tips for respectful visits:

Look before you walk to try to avoid stepping on barnacles, mussels, and other creatures. Walk carefully for your own safety and to protect all the tidepool life.

Leave animals where they are. Don’t pry them off of rocks. Removing them from their habitat could be very dangerous to them. Many don’t survive once removed, even if people think they are placing them back in their spots.

Also leave shells, rocks, plants, and other marine life in its place, as much of it serves as homes to the sea life.

Do not bring household pets to the tidepool.

Do not disturb other animals, like seals or birds, that may also be present.

Other tips to help visitors stay safe and enjoy the experience include:

Try to find a good guide book ahead of time so you can acquaint yourself with some of the marine life you may be encountering, and possibly bring the book for use at the tidepool.

Be sure you’ve planned your trip to arrive before low tide and leave before the next high tide.

Stay aware of the tides. Keep an eye on the waves as the high tide is coming in.

Tidepools are slippery, so wear shoes with good traction that can get wet.

Dress in clothes that can get wet and keep you warm. It could be windy or chilly.

Take the time to really observe the tidepool life. Lots of animals are not immediately apparent to visitors.

Something about the act of tidepooling in the early morning hours invariably leaves our family hungry. Plan to stop for breakfast or lunch on the way home and talk about all the marine life you saw.


Photos by Susan Sachs Lipman

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