Make an underwater viewer Create a window into a world of wildlife usually hidden from us Share on Facebook Share on Twitter Share on Pinterest Email to a friend This competition is now closed March 21st, 2020 at 8:17 am Advertisement You Will Need Plastic tube/pipe or long tin tube transparent polythene or plastic glass Silicon glue or elastic band Step 1 Plastic tube/pipe or long tin tube (from a brewing kit for example) – ideally 30-45cm long. If using a tin, remove both ends, smooth sharp edges and cover with waterproof tape. Step 2 Place transparent polythene over one end of the tube. You could also use rigid plastic glass. Cut it slightly larger than the hole in your pipe and glue it to the end of the pipe with silicon glue. Step 3 If using polythene, place an elastic band around it to hold it tightly and taut over the end of the pipe. You should now have a pipe with a clear plastic window at one end. Step 4 Lower the plastic-covered end of the device into clear water – and enjoy the view. Use on a sunny day for the clearest views and be careful not to cast your shadow over the viewer. Advertisement Illustrations by Alan Batley Share on Facebook Share on Twitter Share on Pinterest Email to a friend Tags British wildlife children's activities garden pond Gardening Latest Two-fifths of the world’s plants at risk of extinction, warns report Natural Resources Wales to make decision ‘soon’ on whether to prosecute over River Llynfi pollution incident You may also like How to How to double dig a veg plot Trees & plants Jobs for the garden this winter How to How to make a plant wigwam Outdoor Skills Daylight Saving Time UK: When do the clocks change and why do we change them?