"All these people are very special to us. They have struck up some wonderful friendships and have become life-long friends with us as well," she said.
Since setting up the business Mr Adams said there were not many parts of the country where Take It Easy Tours had not taken customers.
Destinations have included Molesworth Station and the remote farms up the Rakaia Valley.
Overseas trips continue to take in Australian centres and Norfolk Island. Mrs Adams has made 20 trips to Norfolk leading tour parties. They said they never thought the business would evolve the way it has given its very basic beginnings.
"It's filled such a niche for so many people, many of them who are on their own.
"It's that social connection they treasure," Mrs Adams said.