The dramatic chalk cliffs of the Seven Sisters, East Sussex — setting for coasteering at the cliff base
Adventure

Coasteering
East Sussex

Scramble, swim, and jump beneath England's most dramatic chalk cliffs. Rock platforms, sea caves, and cold green water. All equipment provided. Qualified instructors.

Cliff-Base Adventure

The Seven Sisters
from the Sea

Most visitors to the Seven Sisters see the cliffs from above — from the ridge-top path that traverses the chalk buttresses between Cuckmere Haven and Birling Gap. Coasteering gives you the completely different perspective of the base: the rock platforms exposed at low tide, the channels and coves carved by centuries of wave action, the cave systems and sea arches in the chalk face, and the enormous white walls towering overhead as you swim along them.

It is a perspective very few visitors ever experience, and it is genuinely unlike anything you can do on top. The scale and drama of the cliffs is multiplied enormously when you are swimming beneath them rather than walking above them. The water is cold, the rock is sharp, the swell lifts you up and drops you on the wave-polished chalk — and it is absolutely exhilarating.

Sessions are led by qualified instructors with NGB certification, first-aid training, and detailed knowledge of the specific tidal windows and sea conditions that make each section of the coast safe to use. All equipment is provided. The session is graded and routes are chosen to match group fitness and confidence — cliff jumps are never compulsory. Nobody is pressured into anything they are not comfortable with.

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What's Included

Scramble, Swim,
Jump, Explore

All equipment, qualified instructor, and the most physically engaging way to experience the Seven Sisters coast.

Full Safety Equipment

5mm wetsuit, buoyancy aid, helmet, and wetsuit boots provided. All safety equipment is inspected, well-maintained, and fitted to each participant before the session begins.

Rock Platform Scrambling

The chalk platforms at the base of the Seven Sisters are exposed at low tide and form a natural obstacle course of gullies, ledges, and traverses. Scrambling over them is one of the most tactile ways to experience the chalk geology.

Cliff Jumps

Graded cliff jumps — from 1 metre to 8 metres — at designated safe locations, assessed and cleared by the instructor before each group member jumps. Always optional; never compulsory. The decision to jump is always yours.

Sea Swimming

Open-water swimming in the coves and channels of the chalk coastline — in a wetsuit that keeps you warm and a buoyancy aid that keeps you safe. The experience of swimming beneath the chalk cliffs from the inside is genuinely extraordinary.

Sea Caves & Arches

The chalk coast has significant cave and arch systems accessible by sea. Entering a chalk cave from the water — with the swell lifting you gently, the ceiling inches above — is one of the defining moments of a coasteering session in East Sussex.

Qualified NGB Instructor

Instructors hold National Governing Body coasteering qualifications, coastal first-aid certification, and conduct daily risk assessments of sea conditions and tide state. Maximum 8 participants per instructor.

The Experience

Under the Chalk
and Into the Sea

Getting into the Water

Sessions begin at the meeting point where equipment is fitted and a thorough safety briefing is given. The group then walks to the entry point — typically a shingle beach or stepped rock access — where the instructor demonstrates entry technique. First contact with the English Channel in a wetsuit is almost always a shock (even in summer, the water is cold) followed quickly by exhilaration. Within minutes, the group is moving along the cliff base, following the instructor's chosen route through the rock platforms and coves.

The Jump

The cliff jump moment is what most participants remember longest. The instructor identifies a safe jump platform, enters the water first to check and clear the landing zone, and then invites participants to jump one at a time. First-timers almost always spend several minutes on the ledge working up to it — and almost all of them jump. The sensation of leaving solid chalk and hitting the green water below is one of the most viscerally alive feelings that coastal East Sussex has to offer. The water catches you and the instructor is right there. The only direction after that is back up to go again.

Sea Caves and the Hidden Coast

The section of coast beneath the Seven Sisters between Cuckmere Haven and Birling Gap includes multiple chalk cave systems — some accessible only at specific tide states, all invisible from above. Your instructor knows where they are and when they are safe. Entering a chalk sea cave from the water, with the swell holding you gently in the entrance and the ceiling immediately overhead, is the Seven Sisters experience that the thousands of people on the cliff path above will never have. It is the inside of the landscape that most visitors never reach.

Most visitors see the cliffs from above. Come and see them from below.

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Available Dates & Prices

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Common Questions

Coasteering FAQ

What is coasteering?
Coasteering is traversing a coastline by sea — scrambling over rocks, swimming through coves and channels, jumping from cliff platforms (optional), and exploring sea caves at the cliff base. It gives you a perspective of the Seven Sisters that the cliff-top path never can.
Do I need to be able to swim?
Yes — basic comfort in water is required. A wetsuit and buoyancy aid provide significant flotation, so you don't need to be a strong swimmer. You should be comfortable in the sea and not have significant anxiety about open water. Check specific requirements with your operator.
What equipment is provided?
Full 5mm wetsuit, buoyancy aid, helmet, and wetsuit boots are all provided. Wear or bring a swimsuit or close-fitting base layer underneath. Leave valuables at home — everything gets wet.
What age is coasteering suitable for?
Typically age 12+, with some operators accepting children from age 8 for family-format sessions. No upper age limit — participants in their 60s and 70s regularly enjoy coasteering in good physical health. Routes and jumps are graded to match the group.
Is coasteering safe?
Guided coasteering with a qualified NGB instructor has a strong safety record. Instructors conduct daily sea condition and tide assessments, hold first-aid certification, and limit groups to 8 per instructor. Jumps are always optional — nobody is pressured to do anything they are not comfortable with.
When is the season?
May to October at East Sussex. Peak season is June–September with sea temperatures of 16–20°C. Sessions are tide-dependent, so times vary by day — check individual operator listings for exact scheduling.

From above, the cliffs are beautiful.
From below, they're extraordinary.

All equipment provided. Qualified instructors. The most physically alive way to experience the Seven Sisters. Book now.