Not long after the invention of the Aqua-Lung enabled ordinary people to take-up scuba diving, locals were making their own rubber wetsuits to dive in Ullswater. These home-made wetsuits weren’t very warm or long-lasting, but some sixty years later, you can still see divers from all over the UK going into Ullswater.
So why do divers dive in Ullswater? They’re looking at wildlife, looking for treasure, or looking to practice their diving skills. There are shoals of small fish in Ullswater such as perch, trout, schelly and very occasionally pike. Sometimes we do see bigger fish of 25-30cm but this doesn't happen very often. At night the eels are very active.
The lakebed around the edges is leaves and silt, with escaping bubbles from rotting vegetation. Around 3m deep, plant life includes hornwort and underwater grasses that can grow up to 2m high. However, the plants follow the shoreline because if they are too deep the light can’t get to them and they can’t photosynthesise.