Bike along the famous 33-mile Rim Drive to see the country’s deepest lake – 1,943 feet. Its rich blue color and 6-mile-wide caldera, which was formed when Mount Mazama erupted more than 7,000 years ago always astonishes visitors. The road is ideal for riders who like to alternate easy paths with steeps hills and sharp curves. Bicycle Adventures offers a 7-day tour and 8-day Oregon Coast to Crater Lake Bike Tour. Spend two nights at iconic Crater Lake Lodge, high on the lake’s rim.