Wet Jet tours depart daily from Lewiston NY. Passengers for this trip must be at least six years of age and 44 inches in height. J The Jet Dome departs daily from Niagara-on-the-Lake as well as the Niagara Glen (during June, July and August). Passengers for this trip must be at least 4yrs of age and 40inches in height. Passengers under the age of 16 must travel with an adult over the age of 18.