Sunday, Sept. 12

 Chamber Series - The Naples Philharmonic Orchestra Chamber Ensemble presents Musical Spectrum, the first program in the season’s Chamber Series, at 3 p.m. today and 8 p.m. Tuesday at the Philharmonic Center for the Arts. 597-1900.

 Biker Event - The Shell Factory and Nature Park hosts Hawgs & Dawgs from 2-9 p.m. every Sunday. Enjoy live entertainment by Daniel Cook and a special menu at The Swamp Bar, which also caters to four-legged friends. 995- 2141, ext. 117.

 Pet Gathering - It’s Dog Day Sunday from 3-5 p.m. every Sunday at the Calusa Nature Center & Planetarium. Families can walk their dogs on three different trails. Families with dogs enter for free. 275-3435 or e-mail info@ calusanature.org.