Can I wear outdoor clothing in the Alton Towers Waterpark? Outdoor clothing can be worn in the Waterpark if you are a spectator, however outdoor footwear is not permitted. We do recommend guests to wear loose clothing whilst inside the Waterpark. For full details - see our swimwear policy here. Related articles Can I spectate without using the Waterpark? Should I bring my own towels to the Alton Towers Waterpark? Is there anywhere in the Alton Towers Waterpark where I can eat or get a drink? What are the restrictions for your Thrill Rides and Attractions? Are there any buoyancy aids or floats for children when in the Waterpark?