The week ahead in Orange County

Today

Peace Festival: UCI will have a peace festival from 9 a.m. to 5 p.m. in the Physical Sciences Plaza, southwest of Aldrich Park, on the campus. The festival will feature speakers, music, dance, food and art. Free. Information: (949) 824-1227 or www.citizenpeacebuilding.org

Columbus Day Celebration: The Bowers Museum will host a celebration from 10 a.m. to 4 p.m. The program will feature a tribute to Columbus and exhibits. $5, free with admission to the museum. 2002 N. Main St., Santa Ana. Information: (714) 836-4655 or (714) 567-3600.

Russian Heritage Celebration: Mission San Juan Capistrano will present its annual celebration from noon to 5 p.m. The event will feature Russian entertainment, folk song and dance, food, displays and artists. Free with admission to mission. Information: (949) 234-1321.

Nature Tour: Newport Bay Naturalists and Friends offer a walking tour of Back Bay in Newport Beach. The tour covers about a mile of the upper bay. Tours start every 15 minutes from 9 to 10:15 a.m. Free. Tours begin at East Bluff Drive and Back Bay Road. Information: (949) 786-8878.

Sunday

Public Safety Day: The Newport Beach Police and Fire Departments will present a combined open house from 10 a.m. to 3 p.m. Free. 868 Santa Barbara Drive. Information: (949) 644-3110.

North Ridge Hike: The Donna O’Neill Land Conservancy offers a hike of North Ridge Trail. 9 a.m. to noon. $5. 28672 Ortega Highway, San Juan Capistrano. Reservations: (949) 489-9778.

Monday

Columbus Day: Thomas A. Bowden, writer for the Ayn Rand Institute and author of “The Enemies of Christopher Columbus,” will speak on Columbus and Western civilization. 7:30 p.m. Free. Hyatt Regency Irvine, 17900 Jamboree Road. Information: (949) 222-6550.

Tuesday

OCC Fundraiser: Orange Coast College’s Fashion Design Program will have its annual fundraiser from noon to 3 p.m. in the OCC quad. Top designers will sell men and women’s clothing at wholesale prices. Tickets: $2, or three for $5. 2701 Fairview Road, Costa Mesa. Information: (714) 432-5725.

Senior Summit: Assemblywoman Patricia Bates, Supervisor Tom Wilson and San Clemente Mayor Susan Ritschel will hold a senior summit with discussions on “The Secret to Ageless Living.” Lunch will be provided. 9 a.m. to 1:45 p.m. Free. San Clemente Community Center, 100 N. Calle Seville. Reservations: (949) 499-0525.

Wednesday

Brea on Display: Brea will hold a Chamber of Commerce Expo featuring entertainment, business information and a sneak peek at the Brea Trolley. 5 p.m. Free. Downtown Brea, Birch Street and Brea Boulevard. Information: (714) 671-4421.

Source: The Orange County calendar is compiled by Philip Le and Jessica Zuchero. Submit items two weeks in advance to ocdesk@latimes.com or by fax to (714) 966-7711.

Los Angeles Times