Please be advised that an oil spill clean up exercise is taking place on the Milford Haven Waterway today to test multi-agency oil response. Some activity will be visible to the public but please be assured that there is no cause for concern.
A Notice to Mariners has been issued containing more details: https://www.mhpa.co.uk/notice-to-mariners/2017/10/17/notice-to-mariners-no-112-of-2017-oil-spill-pollution-exercise-dark-bay/