Project Surf House Helsinki Helsinki, Finland Unique Venues Indoor Products used FlowRider Double Services provided Build Featured Projects Surf House Helsinki Project Highlights Remember Everything Let’s start collaborating on a project to give families life-long memories. Explore On this page Featuring FlowRider Double Our FlowRider Double is the world's most popular surf simulator. You'll find this surf machine around the globe in parks, malls, restaurants, and hotels and resorts.