Austin Adventures will double its small ship and river cruise sailings in 2019.
Dan Austin, the company's founder and president, said that the concept of small ship cruising has taken off with the company's clientele over last few years.
"Our cruise itineraries are expedition-oriented, which means that because the ships are small we can bring our guests over the water onto often-unvisited shores, surrounded by pristine wilderness," he said.
Among the new offerings are four-day river safaris down the Chobe River in Botswana and Namibia aboard the 28-passenger Zambezi Queen.
The company will also again offer Amazon and Mekong river cruises.