The walk starts at Sandy Haven, a remote beach popular for sunbathing, rockpooling and paddling. At low tide it is possible to walk across the estuary but be aware that if you are cut off by the tide you will have a long walk back, detour at high water is some three to four miles along roads. You will pass the town of Milford Haven which has a full range of facilities including a rail connection The town of Milford Haven lies on the north bank of the Milford Haven waterway, which is a drowned valley and has a landscape of low-lying wooded shorelines, creeks and mudflats. This section is significantly influenced by the oil industry complexes of Milford Haven; if you have an interest in the impact of oil facilities on the environment then this is the section for you. The walk ends at the town of Neyland which owes its origin to Isambard Kingdom Brunel who made it the terminus of his South Wales Railway in 1856.