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Acadia National Park
Intertidal Leave No Trace
Pink sea star sits in shallow tidepool.

NPS/Todd Edgar

Sea stars and other marine life are fragile; if you handle them, please be gentle.

Leave No Trace principles should be followed when you explore the intertidal zone. Here are some specific principles to remember:

  • No footgear will save you from slippery intertidal rocks covered with algae and seaweed. Travel slowly.
  • Know the tides and be wary of waves, especially in high surf conditions. 
  • Avoid crunching barnacles with your feet, especially large barnacle hummocks. 
  • Spread out your group to disperse impacts. 
  • Handle marine organisms with great care and discrimination, and only if you must. Return them to the exact spot you found them. 
  • Do not collect live animals such as sand dollars or sea stars. 
  • Do not collect beach cobbles. 
  • Collect only unoccupied seashells. 
  • Harvest mussels, clams, and other shellfish according to state regulations.

Learn more about exploring tidepools.

 
Woman stands near tidepool looking in.
NPS/Todd Edgar
Marine animals live both in and around tidepools; watch your step at all times.
Cobblestone Bridge, faced with rounded cobblestones, has a stream running underneath.  

Did You Know?
The historic carriage road system at Acadia National Park features 17 stone-faced bridges spanning streams, waterfalls, cliffs, and roads. The design of each bridge, such as Cobblestone Bridge, is unique.

Last Updated: February 13, 2007 at 15:44 EST