Latvia's largest indoor water park charges roughly €15/adult for two hours of fun, children under six €8. A wave pool, children's pool, outdoor pool, water slides and other attractions are all at your disposal as well as a poolside bar, a cafeteria, saunas and hot tubs. Take a Jūrmala bound train to the Bulduri station and then walk 10 minutes down Muižas iela to the park.