Festival of Endurance


Please see below for list of races.


Visit Castle Triathlon Series website for prices.

festival of endurance

Festival of Endurance – 7 July

The Festival of Endurance is returning once again to Hever Castle combining the Bastion full iron distance triathlon, the Gauntlet half iron distance triathlon and a variety of other swimming and/or running events. Taking place on Sunday 7 July, the Festival of Endurance is organised by Castle Triathlon Series.

View the competitor guides and see course maps.

Access for Hever Castle & Gardens Visitors – The Festival of Endurance starts at 5am and will continue throughout the day. The swim is in the Lake and river and will be completed by 11:30am. Boat hire will be available from 11:30am. Transition takes place on Half Moon Lawn and some of this area will be restricted. Cyclists and runners will be in the grounds during the day but due to the limited numbers of competitors and their varying abilities this is unlikely to impact your enjoyment of your visit. Please also note that we are unable to run archery lessons.

Races and Distances

Race NameRace Distance
The Bastion Iron Distance3.8km swim / 180.2km bike / 42.2km run
Long Distance Aquabike3.8km swim / 120km bike (optional 4km run)
Middle Distance Aquabike1.9km swim / 60km bike / (optional 4km run)
The Gauntlet Half Iron Distance1.9km swim / 90km bike / 21km run
Long Distance Swim3.8km swim
Middle Distance Swim1.9km swim
Long Distance Aquathlon3.8km swim / 21km run
Middle Distance Aquathlon1.9km swim / 10km run
Half Marathon21.1km run
Full Marathon42.2km run
Swim only10km
Duathlon10.5km run / 45km bike / 4km run
Duathlon21km run / 90km bike / 10.5km run

Find out more about the Festival of Endurance on the Castle Triathlon Series website.

Always check details before travelling. Hever Castle reserves the right to close all or part of the Castle, grounds, catering outlets and activities, and to change or cancel and events. Please note that use of partner offers may be restricted or not valid on event days.

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