The Mountains to Sea Trail from Upokongaro to the Tasman Sea in Whanganui offers a unique and diverse experience for cyclists. This section of the trail is a flat and easy ride that follows the picturesque lower reaches of the Whanganui River, through the city of Whanganui, and onwards to the untamed coast of the Tasman Sea.

The trail showcases the natural beauty of the Whanganui River, with its rugged scenery and historic riverboats, and provides an opportunity to explore the vibrant and artistic city of Whanganui. The final stretch of the trail leads through salt-tinged backstreets to the North Mole - Castlecliff, a beautiful driftwood-strewn beach that marks the end of the epic journey.