Beware the banshee!

You never know where the inspiration for the annual Nautical Nightmares will come from. This year, it’s Irish, Scottish, and English folklore and tales about the faerie realm.

This spooky tour at Mystic Seaport Museum, which runs from Friday through Oct. 27, is called “Wake of the Banshee.” In the storyline, a village that’s populated by plenty of eccentrics is beset by a banshee.

The tale unspools over the course of an hour tour of the museum grounds. A word of warning to folks who have trouble ambulating: Audience members walk or stand for most of the event, and they walk 1/3 to ½ of a mile of uneven terrain.

A few other notes: The tour isn’t recommended for kids under 12 “or the faint of heart.” Each tour only accommodates 18 people, so you’d be wise to pre-regsiter.

Nautical Nightmares, Oct. 11-12, 18-20, and 25-27, Mystic Seaport Museum, 75 Greenmanville Ave., Mystic; tours leave every 15 minutes from 6-10 p.m. from the museum’s Sanger Visitors Reception Center; intended for ages 12 and up; $24 members, $28 non-members, $19 youth members, $24 youth non-members; (860) 572-0711.