A pondside magnifying glass is the latest brainwave by Happy Mount Park volunteers.
The innovative ‘pond magnifier’ will allow visitors to enjoy a close up view of creatures living beneath the water.
Volunteer David Croston said it took 60 hours to create.
Mr Croston hoped the public and owners Lancaster City Council would back the idea so it can be installed. The council is looking into it.
Meanwhile the council has vowed to take action against vandals who have wrecked some of the volunteers’ other creations, including a bike-powered waterfall feature.
Coun Ron Sands, cabinet member for tourism, said: “The park is a tremendous local asset enjoyed by a large number of local families and visitors throughout the year and a facility we should all take pride in.
“It’s a great shame that a minority get a thrill out of ruining it for everyone else and an insult to the hard work and dedication of those who have worked so tirelessly over the last few years to make significant improvements to the park.
“Council officers have arranged to meet with the volunteer group to discuss the most effective and affordable way forward in deterring future vandalism in the park.
“In the meantime, we would urge anyone with information about those responsible for acts of vandalism to contact the police.”