Table 1 Activity characteristics of the research sites

Champagne Pond Pool and Entringen Pool

 • Swimming (lap swimming as well as play)

 • Diving activities (competitive and play)

 • Aqua jogging (usually with swim noodle or inflatable mattress)

 • Teasing one another and dunking each other under water, water splashing and water bombs (mostly children and adolescents)

 • Treading through pool with long breaks at the edge of pool (cooling off in water when it is very sunny and hot)

 • Ballgames in water/pool or on lawn (passing or shooting off friends)

 • Wild, playful running, walking around (mostly young children)

 • Slow/moderate walking around/playing with children by parents

 • Playful jumping into pool or water

Entringen Pool

 • Table-tennis, beach volleyball, football (mostly ball passing)

Champagne Pond Pool

 • Snorkelling (usually while swimming slowly, sometimes supported by swim noodles)

 • Stand up paddle boarding

 • Canoeing

 • Surfing and wakeboarding (outside the lava stone wall of pool)