Spring Fling

Spring Fling, billed as the nation’s largest student-run carnival, returns to the University of Arizona this weekend.

Spring Fling was held on the lawn north of McKale Memorial Center, at the east end of the UA campus, for 26 years. But three campus construction projects forced the carnival to change locations in 2000.

What hasn’t changed since it started in 1974 are its carnival rides, games, food booths and entertainment that draw older and younger Tucsonans as well as college students. This year’s festivities are expected to attract more than 25,000 people over the three days.

Find it on the East Mall of the UA campus at North Campbell Avenue and University Boulevard. Hours: 4-11 p.m. Friday; 11 a.m.-11 p.m. Saturday; and 11 a.m.-6 p.m. Sunday. Admission is $5; check out http://springfling.arizona.edu for promotions and ticket prices.

The Earth Day Festival

Celebrating it’s 20th year, this festival is slated to draw more than 4,000 people to the southwest corner of Reid Park from 9 a.m.-2 p.m. Saturday. Some of them will be dressed up as their favorite creatures as part of the traditional parade, which gets underway — with a huge fabric cheetah — at 10 a.m. on 22nd Street going west to Country Club Road. The festival features more than 100 exhibits related to the environment, including “hands-on” activities for children and a puppet show. Also, learn more about environmentally-friendly products, water conservation and water quality, household hazardous waste, recycling and waste minimization, wildlife, desert plants, parks and more.

Bike Fest

The Living Streets Alliance’s annual celebration of “life on two wheels” has packed the entire month with pedal-powered goodness.

Here are just a couple of the events taking place this weekend. Go to www.bikefesttucson.com for more.

Get free admission to the Reid Park Zoo Saturday when you ride your bike there and show your helmet. There’s also free valet parking inside the zoo.

Getting there is part of the fun. The Greater Arizona Bicycling Association (GABA), will have rides starting from various places around Tucson, in varying distances and speeds. All rides will converge at the zoo between 9 a.m. and noon. Once there, stop by the GABA table with a bike helmet to get a free ice cream cone/cup voucher (limited to the first 300 cyclists).

The GABA Spring Bike Swap on Sunday is another spring tradition that draws sellers and shoppers from far and wide. On Sunday, check out what may just be the largest bike swap in the Southwest. Get deals on bicycles, parts and gear from 7 a.m. until 2 p.m. in the Fourth Avenue District centered at the corner of Fifth Avenue and Seventh Street. More than 50 vendors will be set up, and there’s free valet bike parking. Details at www.bikegaba.org