Bluegrass Hawai'i Traditional & Bluegrass Music Society's first acoustic jam of the year — called Pickin' in the Park — is happening from 1 to 5 p.m. tomorrow at the Old Stadium Park in Mo'ili'ili.

Bring your instrument and/or your musical appreciation. And don't forget a blanket or lawn chair to sit on.

It's free. 206-3456, www.bluegrasshawaii.com.