AllTrails, a digital guide to the outdoors, has announced the acquisition of iFootpath, the No. 1 paid travel app in the UK. Terms of the transaction were not disclosed.

“iFootpath’s mission is to make walking in the UK fun, accessible and stress-free,” explained Claire Sharp and Richard Jemmett, co-founders of iFootpath. “We’re excited to be working with AllTrails to make our walking guides available to an even wider audience.”

Since its founding in 2011, iFootpath has published more than 1,300 hand-curated guides focusing on walking trails in the UK. Each guide includes a detailed map along with turn-by-turn directions, waypoints, photos, and driving directions to the trailhead.

“Our mission is to help people all over the world spend more time enjoying the outdoors,” explained Jade Van Doren, CEO of AllTrails. “By adding iFootpath’s extensive data to the AllTrails platform, we have made it easier than ever for both locals and tourists to explore all that the United Kingdom has to offer.”

iFootpath is AllTrails’ second acquisition, following EveryTrail in 2016.