Yes, you can absolutely bring your own towel to Disney's Typhoon Lagoon, and many frequent visitors highly recommend doing so to save money and ensure comfort. While Disney provides towels for rent at locations like High 'N Dry Rentals (usually around $2 to $5 per towel), these are often smaller, standard white towels that may not be as plush or absorbent as your own beach towel. For guests staying at a Disney Resort hotel, towels are sometimes provided for free at the water parks, but you must scan your MagicBand to verify eligibility. Bringing your own brightly colored or oversized towel also makes it much easier to identify your "home base" of lounge chairs in a sea of identical Disney rentals. Additionally, having your own towel allows you to dry off completely and even use it as a clean surface in your vehicle for the drive back to your hotel. Just be prepared to carry the extra weight in your park bag, or consider renting one of the onsite lockers if you want to store your dry belongings while you enjoy the slides and wave pool.