The reservoir holds over 2,000 million gallons of water and provides drinking water for a significant portion of South Suffolk.
The 8-mile perimeter trail is part of a larger network that connects to local villages via public bridleways.
The site hosts a wintering population of wildfowl, including great crested grebes and goldeneyes, making it a key regional spot for birdwatching.
The reservoir was created in the 1970s and 1980s by damming the Tattingstone valley.
Anglian Water manages the site specifically as a biodiversity-focused park, balancing recreation with nature conservation.
Alton Water Sports Centre is located on the 400-acre Alton Water reservoir, the largest expanse of open water in Suffolk. The site functions as a multi-activity hub offering sailing, windsurfing, paddleboarding, and kayaking with equipment rental available on-site. Visitors can access an 8-mile circular trail designed for cycling, walking, and birdwatching that encompasses the entire perimeter of the reservoir. The site is a Site of Special Scientific Interest (SSSI), recognized for supporting diverse bird populations throughout the year. Dedicated angling areas are maintained for coarse fishing, with permit requirements for enthusiasts. On-site facilities include a café overlooking the water and a dedicated children's play area.
The elevated viewing points along the southern bank near the dam offer the widest panoramic views of the reservoir.
Bring a change of clothes and a towel if participating in water sports, even during warmer months.
Download or print the trail map before arrival, as mobile signal can be inconsistent in some wooded sections of the reservoir perimeter.
Check the wind forecast if planning to rent a sailing boat or windsurf board, as conditions change rapidly.
Attempting to swim in the reservoir outside of designated, supervised sessions, as this is strictly prohibited for safety and water quality reasons.
Water sports activities are seasonal and typically pause or move to a limited schedule during the coldest winter months.
Life jackets must be worn at all times when on the water, and dogs must be kept on leads in designated wildlife areas.
