Sea kayaking the Castlemartin Ranges is one of the most committing and visually dramatic journeys in Pembrokeshire. With exposed limestone cliffs, military exclusion zones, tidal planning and long mileage, this route is reserved for experienced paddlers seeking a serious coastal objective.

A Restricted and Remarkable Coastline

The Castlemartin Ranges stretch along a remote section of south Pembrokeshire coastline. Access depends on military firing schedules, meaning careful timing and flexibility are essential.

When open, this stretch offers:

• Towering limestone cliffs
• Offshore reefs and overfalls
• Long, uninterrupted mileage
• Technical landings
• Full exposure to Atlantic swell

This is not a casual paddle.

Huntsman’s Leap by Sea Kayak

One of the highlights of the Castlemartin coastline is Huntsman’s Leap, a dramatic vertical cleft in the cliffs.

Approached from sea level, the scale and echo inside the chasm make it one of the most atmospheric features in Wales.

👉 Huntsman’s Leap (with video)

The Green Bridge of Wales

Further along the range lies the iconic Green Bridge of Wales, a natural limestone arch sculpted by centuries of swell.

From a sea kayak, the perspective is entirely different — the structure towers overhead, revealing its true scale and fragility.

Conditions & Commitment

This route typically involves:

• Long exposed paddling sections
• Strong tidal flows
• Overfalls in wind-against-tide
• Limited escape points

Suitable for:

✔ Intermediate to advanced paddlers
✔ Those comfortable with distance
✔ Paddlers with tidal planning experience

Sea kayaking the Castlemartin Ranges is one of the Pembrokeshire Classics trips and preparation through Intermediate and Progressive courses is strongly recommended.