Otter Hole, Cave formation in St Arvans, United Kingdom
The entrance to Otter Hole lies at the foot of a bluff along the River Wye, leading to extensive underground passages and chambers.
The Royal Forest of Dean Caving Club has managed access to this geological formation since its discovery, protecting its mineral structures.
Local speleologists conduct guided expeditions through the cave system, sharing knowledge about its geological features and mineral formations.
Access requires advance booking through the Royal Forest of Dean Caving Club, with tours limited to five participants aged 18 or older.
The Hall of 30 contains large stalagmites displaying various colors from mineral deposits, including white calcium carbonate and arsenic-tinted formations.
Location: St Arvans
GPS coordinates: 51.66083,-2.68611
Latest update: March 4, 2025 16:38
Piercefield House
370 m
Old Wye Bridge
1.9 km
Wyndcliffe Court
1.5 km
Lower Wye Gorge SSSI
1.5 km
Gwy House
2 km
Tutshill Tower
1.4 km
Church of St James (ruins)
1.2 km
Church of St Luke
1.6 km
Chepstow Castle PH
2.1 km
St Arvan's Church
1.1 km
Chepstow Museum
2 km
Woodfield House
2.1 km
Koxy (formerly The Bridge Inn)
2 km
15, Bridge Street, Chepstow
2.1 km
Afon Gwy
2 km
Milestone at grid reference 543959
1.6 km
Pike House
1.6 km
13, Bridge Street, Chepstow
2.1 km
Ashburne House
2.1 km
Wyecliffe
1.8 km
14, Bridge Street, Chepstow
2.1 km
St John's On The Hill School
1.9 km
Tutshill Lodge
2.1 km
Pen Moel
1.5 km
Archway To Old School Lane At Grid Reference 542956
1.6 km
Castle Terrace, Numbers 33a-47 Consec Bridge Street
2.1 km
Gate Piers, Gates And Boundary Walls To Tutshill Lodge
2.1 km
Milestone, Tutshill; by Cross Keys
1.8 kmReviews
Visited this place? Tap the stars to rate it and share your experience / photos with the community! Try now! You can cancel it anytime.
Discover hidden gems everywhere you go!
From secret cafés to breathtaking viewpoints, skip the crowded tourist spots and find places that match your style. Our app makes it easy with voice search, smart filtering, route optimization, and insider tips from travelers worldwide. Download now for the complete mobile experience.
A unique approach to discovering new places❞
— Le Figaro
All the places worth exploring❞
— France Info
A tailor-made excursion in just a few clicks❞
— 20 Minutes