BRAINERD (AP) — Flourishing Minnesota resorts are scrambling to deal with a seasonal worker shortage heading into summer.

According to the state demographer's office, baby boomers in popular tourist areas are retiring faster than they can be replaced. Temporary worker prospects were also limited this year when a congressional exemption that allowed more international seasonal workers into the U.S. expired.

Minneapolis immigration attorney Loan Huynh said more visas have since been approved, but a federal office has yet to resume processing on such applications.

In the meantime, hiring managers are advertising jobs on social media and billboards, and offering monetary incentives to attract a new generation of workers.

The state tourism office says the number of people traveling in Minnesota increased 10.8 percent from 2013 to 2015, reaching 71.2 million people.