Most musicians on tour travel by plane, bus or at least beat up VW van. The four singer-songwriters of the Massachusetts Walking Tour, on the other hand, traverse roads, trails and even waterways (in low tide) on foot to get to their gigs.

This summer is the seventh that co-founders Raianne Richards and Mark Mandeville have set out across the highways and byways of the Commonwealth to bring music to small towns.

The Webster couple, who have played together for 13 years, first started with a hike from the Berkshires to Boston.

“In doing that trip, one of the towns we played in, we were the first concert they had in twenty years. Initially, it was just a ridiculous thing to do,” said Richards.

But seeing so many towns with little to no access to live music inspired Richards and Mandeville to make the Walking Tour an annual event.

Setting out each June, “we go through a different region of the state and try to target small towns specifically,” Richards explained.

To date, they’ve visited around 85 of the state’s 351 towns and cities and want to traverse all of them on foot.

“We’re gonna be at this for a while,” said Mandeville.

Four years ago Mark Kilianski and Amy Alvey, a folk and bluegrass duo who play under the moniker Hoot and Holler, joined the tour and haven’t missed a year since.

This June they set out on a 143-mile walk from Truro to Swansea with stops in 18 towns.

The musicians walk an average of eight to 12 miles a day with 40 pounds strapped to their backs, not including their instruments. After mostly walking on roads their first year, they began taking advantage of trail systems, and this year incorporated bike paths, including the Cape Cod Rail Trail and the South Coast Bikeway.

After playing at Island Wharf in Marion on Wednesday, the group followed the old rail bed and future bike path between Marion and Mattapoisett and crossed Eel Pond at low tide (with the help of flip flops purchased by bike path supporter Bonne DeSousa) to get to the Mattapoisett YMCA where they slept Thursday night.

“It was an adventure,” said Richards.

The group arranged concerts before their trip, collaborating with groups like the South Coast Bikeway, to incorporate local musicians into each performance.

“Every single night is a different show,” Richards said.

On Thursday night, the Walking Tour performed on the lawn of the Mattapoisett Congregational Church with a string of opening numbers from the community.

Mary Beth Soares and Joan Aiken sang folk songs in two-part harmony about “old men on Harleys,” the Milky Way and a lighthouse keeper.

Multi-instrumentalist Jeff Angeley and students also played, including The Mighty Uketones, a 10-piece ukulele ensemble.

Storyteller Jackson Gillman told stories in song with a bent towards the environment, a fitting accompaniment to the Walking Tour, which incorporates songs about walking and nature as much as possible.

In addition to old mountain tunes and classic folk, the quartet sang original songs, some inspired by their yearly journeys through Massachusetts. One in particular highlights one of the tour’s main purposes.

“We all have something worth singing about,” crooned Richards. “It's common ground.”

The Massachusetts Walking Tour played for kids at the Mattapoisett YMCA’s summer program on Friday morning before continuing to Fairhaven. They will also perform in New Bedford and Dartmouth in coming days.

The full schedule and ways to support the group are available at www.masswalkingtour.org/2016.html.