they're usuallu inside stuff
soda cans are good, conch shells, pieces of pipe, stuff like that
the easiest thing is just to walk around in a few feet of water and pick up 5 or 10 objects then set them out on the beach a few yards from the water and sit back and wait for a bit, see if anything comes out of them to head back to the water
will definately try that!i hear you can find them "hopping" from pool to pool in search of food if you have a flashlight?or do you think they would see you coming a mile a-way?and have you done this before?
Did caught one among the tidepool in the late afternoon some years back. What caught my attention was the bobbing of the water from its breathing near where it was hiding. Thankfully it was a windless day, so quite easy to spot.
In the realm of the "this is not going to make me popular with this crowd" comments: I do know a very easy way to find octos in a tide pool...this is info from an indonesian fish collector I know, and it does work:
Pour urine into a tidepool. (ok, they just piss in it). for some odd reason, (maybe the change in chemical balance) cephs just rocket out of the hiding spots.
Disgusting? Yes. but it does work.
FYI. kids, don't try this at home!
very unusual tip,but will try them all!sounds like a one shot deal that i will leave to my b-friend to perform.please keep the ideas coming,doubt i will catch one my first night out,but keeping my hopes up!only live 30mins. from beach so will be able to keep trying i guess.keep your fingers crossed for me