About 300 people took part over various lengths of the 23.6-mile circuit. There was an option to start from the Val De Terres, Rocquaine or Grandes Rocques.
Project manager Brandon Bell and his partner Karen Farman said they loved taking part and had done so many times.
‘We have done it loads. We don’t do any training, it’s just a good day out,’ said Mr Bell.
The full route took riders through St Martin’s, along Fort Road, past the Mallard Complex to Pleinmont Hill then along the coast and back to Town, finishing at North Beach.
Gardener Stephen Falla has only missed the event on a couple of occasions.
‘We do it to join in and raise the funds. It is about taking part in something and raising money for charity,’ he said.
This year Skipton sponsored the challenge with all proceeds going to Les Bourgs Hospice.
One participant riding in style was Clem Blondel, 2, who was perched in a seat at the front of his dad’s bicycle.
‘We have done it four times before, we do around 30 days training,’ said Clem’s mum Vanessa Mitchell.
The family had been completing the 30/30 challenge, which ended on Sunday.
Although they did not find the ride too tasking, they said that headwind on the west coast can make the circuit more difficult.
Friends of Les Bourgs Hospice chairwoman Trish De Carteret said the day had gone brilliantly.
‘Everyone is coming in really happy.
‘It’s been a bit windy on the west coast but it’s all been good. We’re grateful to Guernsey Water for the refill stations because it reduces our plastic, and Skipton and all of our mentors,’ she said.