Aquapark-vesipuisto

The Aquapark sits beside Lake Käyrä in Kouvola and forms part of the wider Tykkimäki resort, alongside the amusement park and the Break Sokos Hotel Tykkimäki Resort within walking distance. The Aquapark opened in 2014.

Pools include a 25-metre swimming pool at 120 cm depth reserved for confident swimmers, the Water Play splash pool at 45 cm with slides built into it, and the Spray Park splash area at 20 cm for the youngest visitors. Among the slides, Body Slide is an open slide with a 110 cm minimum height and 100 kg rider weight limit; Thunder Tunnel is a 70-metre sit-down tube slide; Multilane is a four-lane mat slide; Pendulum is a half-pipe slide; and Typhoon Tunnel, described by the operator as the park's centrepiece, is a ring slide over 100 metres long with a combined rider weight limit of 120 kg.

On-site facilities include two saunas and the year-round Lammenranta Kitchen & Bar restaurant, plus the Lammenranta Beach House for ice cream and slush drinks. Wristbands are required for entry.