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Discover The Lake at Cromhall Quarry

The Lake: Open Water Swimming, Diving & Paddleboarding

Immerse yourself in our limestone-filtered waters. Experience one of the UK's clearest lakes for leisure, training and adventure.

Crystal Clear Water Activities Near Bristol

Outdoor Swimming Near Bristol

Swim

Immerse yourself in our crystal-clear water! Whether you're a leisurely swimmer or training for a triathlon, our fully lifeguarded site welcomes everyone.

  • 2 Hour Sessions
  • Changing Rooms
  • Water Safety For All Sessions
  • Excellent Water Quality
Book A Swim
Scuba Diving South Gloucestershire

Dive

Dive into adventure! Explore our underwater features with a buddy or join a dive with one of our affiliated schools.

  • Arrival from 08:30
  • Excellent Water Quality
  • Beach Entry
  • Dive Platform/Step Off
Book A Dive
Paddleboarding Near Bristol

Paddle

Enjoy paddle boarding with our self-launch or instructor-led sessions, perfect for all abilities. Board and wetsuit hire are available on-site.

  • Several Session Types
  • Board Hire Available
  • Intro to SUP Sessions
  • Group & Private Events
Book Paddleboarding

Discover the Best Outdoor Swimming, Scuba Diving and Paddleboarding Near Bristol

Located in South Gloucestershire, The Lake is the premier destination for crystal-clear, limestone-filtered water activities. Whether you’re a seasoned enthusiast or a curious beginner, we cater to all levels with a safe and serene environment.

Many qualified coaches and instructors run their sessions here, so whether you're looking for cold water swimming, your first paddleboarding experience or exploring our underwater world, your time here will be both enjoyable and safe.

Effortless Exploration

Enjoy hassle-free access with our pay-as-you-go booking system. Simply book your session online and immerse yourself in our pristine waters for a refreshing escape near Bristol.

Expert Safety

Benefit from the expertise of our highly qualified staff, trained to the highest maritime standards. Every session is overseen by our water safety team, providing ultimate peace of mind for all users of The Lake.

Scuba Adventure

Explore our unique underwater world with affiliated dive clubs or buddy up with fellow experienced divers. We also offer convenient on-site cylinder filling and testing services.

Paddleboarding

Glide across The Lake’s surface with self-launch or instructor-led paddleboarding sessions. We offer board and wetsuit rentals to make your visit perfectly convenient.

Refuel and Relax

Visit our on-site shop and food wagon after your session. We offer hot drinks, tempting treats, and a range of swimming essentials to help you unwind by the water.

Professional Heritage: As part of the South West Maritime Academy, we host specialised training sessions and events throughout the year, maintaining the highest safety standards for water enthusiasts in the South West.

No Membership Required The Lake is Open to Everyone

We believe everyone should have the opportunity to experience the joy of water activities. Book your session online today and embark on an unforgettable adventure at The Lake.

Book An Activity Today
Series Debut 2026

The Lake Triathlon Series

Race in the clearest water in the South West. Join our inaugural in-house sprint series at Cromhall Quarry.

Dates & Registration

Upcoming Activities At The Lake

The Lake Blog

Read more about The Lake and our upcoming events

Buoy to the World! Scuba Santas return to The Lake

Get your Santa suits (and drysuits) ready, because the most festive dive of the year is back! Scuba Santas returns to The Lake on Saturday, 13th December.
Read More

Confirmed: The Lake Water Quality is Excellent!

As part of our commitment to safety, we regularly test the water. These new results, based on samples taken on October 6, 2025, show fantastic water quality.
Read More