See hot springs, geysers and geothermal power plants on this small-group mountain bike tour from Reykjavik. Travel deep into the Hengill geothermal area to see Hellisheiði Power Station (Hellisheidarvirkjun). Then, set off on a 12-mile (20-km) bike ride along 1000 Rivers Road to Reykjadalur (Steam Valley), where you’ll enjoy free time to explore, eat lunch and unwind in a natural hot spring. Numbers limited to eight to ensure personalized attention from an expert mountain-biking guide.