2009 Seadoo 230 Challenger for sale in Billings This used 2009 Seadoo 230 Challenger is a 23-foot jet boat in black that blends sharp style with everyday ease. The Sea-Doo jet drive delivers quick acceleration, tight handling, and safe, prop-free fun in shallow water. Priced at $29,900 in Billings, this used power boat sets you up for weekends of cruising, tubing, and easy docking. Fire up your weekend and book a test run now before someone else claims it.