Northern Ireland scenic roads and waterside access
Can you swim at Spelga Dam or Silent Valley Reservoir after driving there?
No. NI Water prohibits swimming, diving, paddleboarding and other water activities at its reservoirs, including Spelga and Silent Valley.
No. NI Water prohibits swimming, diving, paddleboarding and other water activities at its reservoirs, including Spelga and Silent Valley.
Local access and parking details
These are managed water-supply sites in the Mournes rather than general swimming lakes. A roadside viewpoint or visitor parking area does not grant access to the water for recreation.
Before you go
Enjoy the signed land-based viewpoints and trails, and follow NI Water safety notices.
Official visitor information
- Northern Ireland Water — reservoir safety — current access, prices and restrictions
Source / reference:
Northern Ireland Water — reservoir safety
· checked 16 October 2026
