The Bay Area’s outdoor ice rinks are frozen solid and ready to welcome seasonal skaters. In San Jose, Kristi Yamaguchi Downtown Ice opens at 5 p.m. Nov. 18 at the Circle of Palms (Sharks mascot Sharkie will take the ice at 7 p.m.) and will operate through Jan. 16. Want to meet Yamaguchi? She’ll appear at the opening celebration, 5 p.m. Nov. 23. Details, tickets ($10-$17) at www.downtownicesj.com. Walnut Creek on Ice, downtown at Civic Park, is already open and offering public skating through Jan. 16; $12-$15; details at http://walnutcreekonice.com. And in the city of Alameda, the Little Ice Rink has set up at South Shore Center. This rink’s open through Jan. 8; $7-$17; find details at http://thelittleicerink.com. And San Francisco’s Union Square rink is open through Jan. 16; $3-$12; http://unionsquareicerink.com/