This time of year is best for searching the tidal zone in rock pool for various species. The fishes, crustaceans and other animals are very visible when the tide goes out. The common Blenny or Shanny( Blennis pholis) is particularly common along rocky coasts and can be found easily by waiting and watching by weedy rock pools. they are very curious of what is going on around them and will peep out of crevices to watch you; and they can be enticed out of the water with bait such as a limpet or mussel.
Prawns are also very easy to find but they are good at camouflaging themselves and they are see through, so blend in with their surroundings. There are several similar species. this one is (Palaemon elegans)
The worm pipe-fish (Gastroclonium ovatum) is uncommon, and is one of the smallest of the half a dozen pipe- fish to be found on rocky weedy coastlines around the UK.