If you’re a nature lover like me and you’re going to the beach this summer, tidepooling is the perfect opportunity to explore the local ecosystem! Tidepools are small pockets of seawater nestled between rocks in the ocean’s intertidal zone. The small pools of water can house organisms such as urchins, sea stars, barnacles, sea anemones, octopuses, and crabs. However, what makes tidepooling such a unique experience is that it’s not always accessible. These pockets between the rocks are swallowed by the ocean during high tide, so you have to check the tidal charts before planning your trip. You’ll want to go during the low tide with daylight when the ocean recedes to reveal the intertidal area (including the tidepools). In general, you’ll want a low tide that is less than one foot (the lower, the better).
There are a few basic rules any tidepooler should follow in order to make sure they are not harming the fragile ecosystem and can fully enjoy the experience. When tidepooling, you should practice the “leave no trace” mentality, making sure to not take shells or leave any waste behind. A simple shell might not look like much to you, but they are homes to crustaceans. Removing any items from the tidepool is never okay—if every tidepool visitor took a rock or shell from the ecosystem, soon there would be nothing left. You should also make sure to watch your step, as organisms may be laying on the rocks. Though flip flops are the general beach attire, I don’t recommend wearing them to tidepools—the rocks are slippery, and sneakers or other close-toed shoes will keep you from falling.
Patience is key when it comes to tidepooling. Your approach to the pool may cause organisms to go into hiding, but if you wait it out for 5-10 minutes and make sure your shadow isn’t cast over the pool, those animals will come back out and you can observe their beauty from afar. “From afar” is important—don’t touch, pick up, or move any of the animals! Some of these animals may be poisonous and you could be causing yourself harm. Not to mention, disturbing them can cause serious injury to the animals! Take seastars, for instance, their legs are covered in hundreds of little suction cups that help them hang on to rocks, and lifting these creatures can cause their cups to tear off. This is only one example, and any disruptive behavior such as touching can cause irreversible damage to the organism that is often invisible to our eyes.
To see cool organisms, look out for rocky overhangs and crevices in the rocks. Many animals take shelter from the sun in these locations. Not everything will be visible simply from standing—try squatting or looking from new angles to discover hidden organisms. When I was tidepooling in Hawaii last summer, I was lucky enough to see helmet urchins, sea turtles, lichens, and purple shore crabs. I found a huge cluster of urchins that was hiding in a crevice, so check out every possible location, even if it doesn’t look promising at first! Seeing these organisms in person is an eye-opening experience that I recommend to everyone who has the chance. Something I also like to do when I tidepool is take notes or pictures on my phone of the organisms’ appearances, so I can look them up when I get home and find out more about them.
If you keep these guidelines in mind, you might have the chance to see some amazing animals during your next trip to the beach! Happy tidepooling!