Haverfordwest and Pembroke Dock loop from Milford Haven

Embark on the challenging Haverfordwest and Pembroke Dock loop from Milford Haven, a touring bicycle route spanning 42.7 miles (68.8 km) with a significant 2281 feet (695 metres) of elevation gain. This difficult ride, typically taking 4 hours and 14 minutes, offers a diverse experience, from expansive coastal views and picturesque vistas of the Cleddau estuary to winding paths through woodlands and nature reserves. You will encounter mixed road surfaces, including paved sections, some unpaved stretches, and even cobblestones, making descents technical in places.

While much of the route consists of asphalt, be prepared for varied road conditions, including potential potholes and gravel on narrower country roads. The trail integrates dedicated traffic-free paths, especially along disused railway lines, providing quieter sections. This loop is best suited for intermediate to experienced riders with very good fitness, given its length and elevation. There are no specific mentions of permits, fees, or seasonal closures in the research, but always check local conditions before you go.

A significant highlight of this loop is its incorporation of sections of the historic Brunel Cycle Trail, also known as National Cycle Route 4. This part follows an old Great Western Railway line, offering mostly flat, traffic-free paths through woodlands with views of the Cleddau Estuary. You will also pass through charming towns like Pembroke Dock and Neyland, cross the Cleddau Bridge for amazing estuary views, and have the opportunity to see Neyland Marina, one of Wales' largest yacht havens.