Southeast Las Vegas
1600 Lake Las Vegas Parkway
Henderson, NV 89011
The marina for a 320-acre manmade lake that offers all manner of water activities and sporting options including canoeing, kayaking, pedal boats, yacht cruises, and more.
At Lake Las Vegas, located about 20 miles east of The Strip.
Prices vary depending on what type of boat you get and how long you keep it, but there are very few opportunities to do stuff like this in the desert around Vegas and few that offer as much amazing scenery.
Because you were planning on visiting the lake area anyway and decided you wanted to get the real experience.
The marina is located in the MonteLago Village area, which has stores, shops, restaurants, and a casino.
A pedal boat on the lake sounds like a lovely way to spend an afternoon to me.