PORTLAND — Skiers and snowboarders are invited to flash their moves Saturday, Feb. 17, at the Payson Park Rail Jam.

The event, from 12:30-3 p.m., is a fundraiser for the expansion of the city skateboard park on St. James Street, city spokeswoman Jessica Grondin said in a press release Monday.

“The Payson Hill Terrain Park will be set up for a rail jam format, where registered participants will hike the hill and hit the various rails and boxes, vying for the best and most stylish tricks,” Grondin said.

All ages are invited to take part, but those under 18 need a parental signature on a waiver form. The registration fee is $5.

Grondin said the event, organized by the city’s Portland Parks, Recreation and Facilities Department and Long’s Board Shop, is co-sponsored by several local businesses, and will have prizes, giveaways, food and music.

The city plans to expand the skateboard park from 8,350 square feet to 14,650 square feet, at a potential cost of $300,000. Local skaters and community members hope to raise at least $100,000 of that cost themselves, Grondin said.

For those unable to make the Rail Jam, contributions can be made by texting the word “SKATE” to 71777.