Dvorak Expeditions wrote the book on the Ark river experience. Knowledgeable, flexible and LOCAL. Don't trust out of town outfitters to know the river, it's flow-rate and it's put-in/take-outs like the staff at Dvorak. Rented a Mini Max raft and was assisted by the staff to safely secure the craft to the roof. Staff was waiting at the take-out to take the gear back HQ. Bill's team of extended family is the best in the business. We will be back.