10k Run Haverfordwest: Scenic Route by Haverfordwest Castle

Route Overview & Local Insights

This flat and fast 9.5km out-and-back route from Haverfordwest is a dream for runners looking to find their rhythm on a seamless, 100% paved surface. Starting near the historic heart of town, the path follows a well-maintained cycle route toward Merlin's Bridge, offering a gentle landscape with almost no elevation gain. With only 31 meters of total ascent, it’s an ideal choice for a tempo run, a long-distance interval session, or simply a stress-free jog away from heavy traffic. Runners will enjoy the straightaways that allow for consistent pacing through the scenic Pembrokeshire countryside.

Haverfordwest has served as the historic gateway to West Wales for centuries, and running through Merlin's Bridge connects you to the deep-rooted local lore of the Cleddau River valley. While the name "Merlin" evokes images of Arthurian legend, the area was historically a vital industrial hub and a bustling crossroads for traders heading toward the coast. Today, the cycle path provides a tranquil green corridor that serves as a vital artery for the local running community, blending the town's medieval market heritage with a modern, active lifestyle. Keep an eye out for local wildlife along the hedgerows as you head out toward the outskirts of town.