Isle of Man

© Geograph

Water Quality

Annual classification


Today's forecast

Forecasts are not available for this location.

A large horseshoe-shaped bay with a sandy beach at low tide. Backed by the historic town of Castletown with its well-preserved castle. This beach also offers good walking and is popular with windsurfers.


You can windsurfing, kite surfing and surf here. There is a museum in the town and plenty of places to enjoy a bite to eat.

Wildlife and Walks

There are many opportunities for short and long walks, from a gentle stroll to the nearby Rushen Abbey. Otherwise explore the rugged coastal path to Port St Marys. Ballalough Reedbeds Nature Reserve is near the beach.

What's tested here?

Water samples are taken voluntarily at this beach by Isle of Man Government from 15th May to 15th September.

Water samples do not need to be taken at this beach and may not be treated in the same way as designated bathing waters, but they are collected in the spirit of the Bathing Waters Directive.
Why isn't this a designated bathing water?

High levels of bacteria in the water can indicate pollution from sewage treatment works or polluted rain water draining from the land.
Where does pollution comes from and how can you help?

Water quality can be reduced for up to 72 hours after heavy rain. Look out for temporary signs at the beach and on our website.

Annual classification


What does this mean?

At the end of every bathing season the water quality is classified as either:

Excellent — the highest classification meaning the water is cleanest

Good — generally good water quality

Sufficient — meets minimum standards

Poor — You are advised not to swim. The beach will stay open and an action plan should be in place to improve the water quality.

Today's forecast

Forecasts are not available for this location.

More information about potential pollution sources and improvement plans.


This Weather Widget is provided by the Met Office

Tide times

Potential hazards at this beach

This beach is not yet classified, please see our safety tips below or contact the local beach operator for further information.

Lifeguarded locations - top five safety tips

Non-lifeguarded locations For those who can’t make it to a lifeguarded beach

For more information visit

Facilities at Castletown

Food Food Shops Shops



There is a car park off The Promenade or on the opposite side of the bay.

Dog restrictions


Dogs are allowed.

Beach cleaning

No current information