Finnish summer culture is all about a day spent alternating between the sauna and lake swimming. Sauna, swim, repeat, basically. I suggest replacing the daytime sauna with gravel riding in the summer heat and including as many beaches as possible along the route. Finland is the land of 600,000 lakes, so incorporating a swim isn’t all that challenging here. But wherever you are, a bit of research before you ride will ensure you find a few refreshing beaches or lakes to stop and recharge! Why not max out the experience by graveling to one of the multiple public saunas to enjoy a genuine daytime sauna and swim before continuing your ride.