Where is the deepest lake in the United States? It's at Crater Lake at Crater Lake National Park, and boat tour reservations are now open. Book from July through September choosing from three different tours of varying times. On the Wizard Island tours you can spend three hours hiking, exploring, fishing and even swimming. It's an unforgettable experience you MUST check off your Oregon Bucket List. Book in our stories and saved in our highlights. #dosomethinggreat | Travel Southern Oregon