Roiske Water Activities Centre is the ultimate summer hangout in Rovaniemi, offering a massive floating water park where you can challenge your friends and family to a Ninja warrior-style obstacle course. They also provide equipment rentals like SUP boards, kayaks, electric surfboards, and rowing boats for exploring the stunning Ounasjoki river. And if you need a break from all the action, their restaurant serves up delicious street food and ice cream. It's the perfect spot for a fun-filled day by the water!