OUTDOORS A BETTER DOWNTOWN. The City of Tucson and Arts District Partnership are looking for public input on how to make the downtown environment more friendly for pedestrians. Stop by between 11:30 a.m. and 1:30 p.m. through April 19, or from 7 to 9 p.m. Saturday, April 20, at Studio 220/Stodska Design, 220 E. Congress St. Call 791-4372 for information. 791-2639 (TDD). DIG IT. Old Pueblo Archaeology Center, a non-profit agency, offers public archaeological field school sessions at Sabino Canyon Ruin, home of Hohokam Indians 700-900 years ago. The program features instruction in archaeological excavation techniques, artifact recovery and care, and interpreting ancient cultures. Lunch is provided. Cost is $69 per 8-hour day with discounts offered to groups and multiple day sign-ups. Reservations required 2 days in advance. Call 798-1201 for reservations and information. ORIENTEERING. The Tucson Orienteering Club meets the third Sunday of the month at various locations. The next meeting is April 20 and 21 at Slavin Gulch in the Dragoon Mountains. Bring a compass and whistle. Cost is $7 per team, $5 individual. Call Mike Huckaby at 324-0209 for directions and information, or e-mail <jimstemm@aztec.asu.edu> BIOLOGICAL DIVERSITY WALKS. Join Southwest Center for Biological Diversity naturalists for walks through Tucson's nearby riparian treasures. Experts answer questions on ecology, birds, plants, herbs and fish. The effects of different land management policies on riparian resources is also discussed. All walks are free, and meet at 9 a.m. on the first and second Sunday of each month. The next walk is Sunday, May 5. Call 733-1391 for locations and information. ARCHAEOLOGY TOURS. The Center for Desert Archaeology offers half-day and full-day tours of the Romero Ruin in Catalina State Park and rock art tours of sites near Tucson. Contact Connie Allen-Bacon at 881-2244 for more information on tours. Individual, group and corporate rates are available. TOHONO CHUL PARK. 7366 N. Paseo del Norte. 742-6455. Tohono Chul Park grounds are open from 7 a.m. to sunset daily. Exhibit hours are 9:30 a.m. to 5 p.m. Monday through Saturday, 11 a.m. to 5 p.m. Sunday. Admission is $2. A xeriscape tour meets at 11 a.m. Saturday, April 20; and a "watersmart" workshop meets at 2 p.m. Tuesday, April 23. The Tohono Chul Tea Room serves twilight dinners from 5 to 8 p.m. Call 797-1711 for dinner reservations. Call 742-6455 for information. Arizona-Sonora Desert Museum. 2021 N. Kinney Road. 883-2702. The museum is part botanical garden, part geology museum and part zoological park. Naturalistic settings house 1,386 plant species and 317 animal species. Live animal visits, botanical and raptor interpretations are given daily. During the month of April live animal interpretations start daily at 9:30 and 10:30 a.m., and 1:30 p.m. A wildflower demonstration table is open daily from 1 to 3 p.m. Museum hours are 7:30 a.m. to 6 p.m. Sunday through Saturday. Admission is $8.95 ages 13 and over, and $1.75 ages 6 through 12. Discount group rates are available. SINGLE CAMPERS. Wandering Single Campers is looking for new members. Single persons over age 40 are invited to join camping activities in the Tucson area. Call 750-0451, 294-0719 or 298-9779 for a newsletter and information.

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