Underwater Collage - provide coloured cellophane, shiny materials,
sequins etc., and shells, pebbles, sand and glue.
Make Aquariums - use shoe boxes and decorate the bottom and
three sides, inside and out. Make fishes and hang from the lid
so thar when the lid is replaced they hang at different heights
inside the shoe box. Cut a "window" in the undecorated
side of the box and cover with coloured cellophane (preferably
green or blue) or cling-film if cellophane isn't available.
Lost Sea Animal Hunt (anagram hunt or wordsearch);
Make toys for baby sea life (shell monsters, octopus, fish
mobile, sailing raft, mermaid puppet)
CD fishes - use two CD's stuck printed sides together. Draw
and cut out paper shapes for mouth and fins and stick them between
the two CDs, cut out long crepe or tissue paper streamers for
Angel Fish type of tail. Hang up in the window to catch the
light. Also make CD jellyfish (same as above but without the
mouth and with a tissue paper 'hat' to make a more jelly-fish
looking body). Hang up in the window to catch the light ...
Woollen octopus. (In either Guiding or the Brownie magazine
a few years ago) Long strands of wool covering a polystyrene
ball, tie up the strands into 8 legs and then stick goggly eyes
on. If you use strands of glittery string or wool in with the
ordinary stuff you can hang the octopus up in the window ...
Crepe paper fancy dress competition as well - give each patrol
or six a couple of packs of crepe paper and let them design
and make their own bathing costumes and sarongs.