Beavers and Cubs from Clayton-le-Moors took part in a sleepover at an aquarium.
Members of the 1st All Saints group travelled with youngsters from St Paul’s Oswaldtwistle, 109 Loyola and Great Harwood Parish for the sleepover at The Deep Aquarium in Hull.
On the way they stopped off at the National Coal Mining Museum in Wakefield for an underground tour by former miners and were kitted out in helmets and head lamps.
When they arrived at the aquarium they were given a tour, tried on diving equipment and took part in craft activities.
Claire Rothwell, of the All Saints group, said: “The children set up their beds on the floor in front of several huge fish tanks and shark tanks.
“Many went to bed with huge rays and sharks only inches from their faces.
“Our young leaders had their own mini adventure as they were privileged to sleep right next to the brand new penguin enclosure which had only opened that week.
“What seemed like an awesome idea at midnight was not quite so when the penguins awoke at 4am and started swimming and diving next to them.”
Claire said everyone enjoyed a breakfast overlooking the North Sea before travelling back to Hyndburn.
She added: “All 100 children and 35 adult leaders and helpers agreed it was the best sleepover they had ever been on.”
Ben Walmsley, nine, of St Paul’s Cubs, said: “I had an awesome time and I learnt loads of really cool stuff about fish.”