The Cross-Bay Half-Marathon is a unique tidal running challenge taking place across the sands of Morecambe Bay in Cumbria, and is organised to raise funds for CancerCare. It’s believed to be the only half marathon in the world that crosses a tidal bay, offering a bucket-list experience for runners ready to take on an extraordinary 13.1-mile (half marathon) route guided by expert local Guide to the Sands leaders.

Key Details

Date: Saturday 4 July 2026
Start Time: Morning start (typically around 09:00 AM)
Start Location: Arnside Promenade, Cumbria
Finish Location: Cark Airfield, Cumbria
Distance: 13.1 miles / half marathon
Organiser: CancerCare (charity fundraising event)

Race Description

This spectacular event sends runners across the sands of Morecambe Bay, following a route laid out by local guides who understand the tides, channels and timing of this ever-changing environment. Participants must obey safety briefings and tide schedules before taking on the bay crossing — a truly memorable and unusual running experience. The event supports CancerCare’s work helping local people affected by cancer and bereavement, combining a physical challenge with meaningful fundraising.

What’s Included

• Finisher’s medal and event T-shirt for all participants.

• Race registration and access to the Runner’s Village at Cark Airfield.

• Free parking at the event site.

• Guidance across the bay by experienced Guide to the Sands leaders to ensure safety.

Additional Information

• Entrants must be over 18 years old on race day.

• Dogs are not permitted on the course due to safety reasons in the tidal environment.

• Ticket options include self-funded entries (no fundraising target) or sponsorship entries to help raise funds for CancerCare.

• Entries close either on 3 July 2026 or when the event sells out.