Rockpooling in Scarborough's South Bay
Some people (mainly locals who like to walk their dogs on the beach) already realise this, but if you're just visiting you might not. This is a fun thing to do on a sunny day, or any day if you have kids (as long as it's not raining!)
Scarborough has LOTS of rockpools. There are 2 bays here, and both have them, but the South Bay, as far round as you can follow it, has the most wildlife to be found in them. It's nice and quiet round there so the creatures don't get disturbed once they have been brought in by the tide. You can spot tiny shrimps and baby crabs, winkles and other types of sea snail, pipe fish, small anenomes - kids love it down there, from toddler (watch them on the slippy rocks) to bigger kids, who feel like the king of the world when they find a big rockpool of their own, full of things to poke with sticks or put in their collecting bucket.
Take a packed lunch down there on a fine day and you can stay for hours and hours, perfect if you are after a cheap day out. You can get to the South Bay rockpools by walking along the paths south from the Spa, on the seafront (going this way you will cross the star disc, an astrological map in the place which used to house the open air pool - worth five minutes but not much more), or by going to the Esplanade on South Bay and walking down from the Clock Tower, through the gardens (not recommended for small children or people with walking difficulties due to uneven paths).