Rick Steves, a well-known traveler and one of the country's most visible advocates of marijuana legalization, speaks during an interview in Portland, Ore., on Oct. 7, 2014. (Don Ryan, The Associated Press)

PBS travel guru Rick Steves touring Massachusetts in support of marijuana legalization

BOSTON — Travel guru Rick Steves is set to tour Massachusetts in support of a pro-marijuana ballot question.

Steves is host of the PBS series “Rick Steves’ Europe” and a long-time advocate of easing marijuana laws.

Steves plans to make three stops across the state next month to stump for the question, which would legalize the recreational use of marijuana.

In a statement, Steves said there are many reasons to end the prohibition on pot, including redirecting money from criminals and into state coffers. Steves plans to donate up to $100,000 to the question.

Republican Gov. Charlie Baker, Democratic Attorney General Maura Healey and Democratic Boston Mayor Marty Walsh oppose the question. They say legalizing pot could be a gateway to harder drugs, including opioids, which have caused a crisis in Massachusetts.