You can rent kayaks from any of the following vendors on Lake Lewisville:
DFW Surf Adventures
20400 Hackberry Creek Park Rd
Frisco, TX 75034
(972) 427-4082 ext 3
Located inside of Hidden Cove Park & Marina at the top of the boat ramp.
Offerings: kayaking, bike rentals, stand up paddleboarding, wake surf lessons, boat charters.