You’ll Walk, Jog, or Run 100 km along the coastal path, over the South Downs Way through day & night (for some) on this 24+ hour challenge all the way to Arundel. Or perhaps take on either ‘Half’ ~57 km (1st ) or 43 km (2nd) Challenge and start or finish at Brighton – alternatively, there’s a 25 km Quarter option from Eastbourne over the famous Seven Sisters.
Starting from sunny Eastbourne, over the magnificent Seven Sisters, onto Cuckmere Haven, and over the South Downs all the way to historic Arundel with view of its castle. This is a tough route with almost ~2,100m of climbing across the full 100km – but you will be rewarded with incredible views as you reach the top of these climbs.
~100 km & ~2100 m
Every 10-15km under marquees with support – toilets, massage, changing rooms, medics, rest areas, hot drinks, water & snacks & much more.
There’s a full range of optional parking & pre or post Challenge shuttle bus transfer services, to make easy to join & exit – and to provide flexible options for you r own planning. These include:
There’s the ULTRA MARCH® category for walkers aiming to do 100 km in less than 24 hours (or 50 km in under 12 hrs). 8.30am start.

For 2026, there’s ULTRA TRAILBLAZERZ® for faster, competitive, runners with an eye on the clock and a ‘time goal’ of sub 14 hrs (male) & 15 hrs (female) for 100km on this Challenge. 6.45am start

Ultra Challenge® 50 km and 100 km events are fully ITRA-certified and officially recognised as UTMB Index races. 4 ITRA points available.
Day 1 ~57 km & ~1250 m
Day 2 ~43 km & ~850 m
Day 1 – Sat 5 Sept
Day 2 – Sun 6 Sept
Every 10-15km under marquees with support – toilets, massage, changing rooms, medics, rest areas, hot drinks, water & snacks & much more.
There’s a full range of optional parking & pre or post Challenge shuttle bus transfer services, to make easy to join & exit – and to provide flexible options for you r own planning. These include:
4 available (2 for each day)
The 1st Half South Coast Challenge is a tough 57 km with ~1250 m of climb – setting out from Eastbourne, you will make your way to the coastline and over the Seven Sisters. After some time at Cuckmere Haven, you’ll make your way over the South Downs and finally descent into hove via Brighton’s promenade.
~57 km & ~1250 m
Every 10-15km under marquees with support – toilets, massage, changing rooms, medics, rest areas, hot drinks, water & snacks & much more.
There’s a full range of optional parking & pre or post Challenge shuttle bus transfer services, to make easy to join & exit – and to provide flexible options for you r own planning. These include:
See ‘Bookable Extras’ page for full details
There’s the ULTRA MARCH® category for walkers aiming to do 100 km in less than 24 hours (or 50 km in under 12 hrs). 8.30am start.

For 2026, there’s ULTRA TRAILBLAZERZ® for faster, competitive, runners with an eye on the clock and a ‘time goal’ of sub 7 hrs (male) & 7.5 hrs (female) for 50km+ on this Challenge. 6.45 am start.

Ultra Challenge® 50 km and 100 km events are fully ITRA-certified and officially recognised as UTMB Index races.
~43 km & ~850 m
Every 10-15km under marquees with support – toilets, massage, changing rooms, medics, rest areas, hot drinks, water & snacks & much more.
There’s a full range of optional parking & pre or post Challenge shuttle bus transfer services, to make easy to join & exit – and to provide flexible options for you r own planning. These include:
2 available
The 1st Quarter South Coast Challenge is a 25 km with ~660 m of climb – setting out from Eastbourne, you will make your way to the coastline and over the Seven Sisters through Cuckemere Haven, finishing up at Alfriston.
~25 km & ~660 m
Every 10-15km under marquees with support – toilets, massage, changing rooms, medics, rest areas, hot drinks, water & snacks & much more.
There’s a full range of optional parking & pre or post Challenge shuttle bus transfer services, to make easy to join & exit – and to provide flexible options for you r own planning. These include: