BRYANT LAKE BEACH PARTY

Put on your swimsuit, grab a towel and join naturalists for an afternoon of fun. Activities include a beach obstacle course and water games. Make a craft and view the tiny creatures that live in ponds. (Noon-3 p.m. Wed. $5. Bryant Lake Regional Park, 6800 Rowland Rd., Eden Prairie. 763-559-6700. www.threeriverspark district.org.)

UPPER MIDWEST KOI SHOW

Some of the most impressive koi fish in the Midwest will be on display and judged. There will also be seminars, vendor booths and exhibitor tanks. (9 a.m.-5 p.m. Sat.; 10 a.m.-2 p.m. next Sun. Free. Bachman’s, 6010 Lyndale Av. S., Mpls. 952-882-1921. www.umkoiclub.org.)

MELISSA WALKER