HIKES

Red Rock, Ice Box Canyon: Monday, three-mile moderate hike and scramble into Ice Box Canyon (515-5367).

Red Rock, Arnight Loop: Moderate three-mile hike Tuesday along the Arnight Loop (515-5367).

Red Rock, Flower Power: Wednesday easy two-mile hike of Willow Loop (515-5367).

Red Rock, Pine Creek: Thursday, strenuous five to six-mile hike with lots of boulder scrambling (515-5367).

Sierra Club: The Southern Nevada Group of the Sierra Club will have a moderate to strenuous four-mile hike and rock scramble Saturday to the top of White Rock Peak at Red Rock. Contact Pepe at 233-5840.

Red Rock, Leader's Choice: Friday, strenuous hike along a trail chosen by the trail leader. Hiking boots are required (515-5367).

Red Rock, Reptile Walk: Moderate two and one-half mile hike to observe snakes, lizards and tortoises (515-5367).

Sierra Club: The Southern Nevada Group of the Sierra Club will have a moderate to strenuous 10-mile hike of Little Zion in the Red Rock Canyon area on April 30. Contact David at 875-4549.

Red Rock, Corn Creek: Easy one-half mile walk Saturday to observe various creatures (515-5367).

Red Rock, SMYC loop: Saturday, moderate three-mile hike along the escarpment from Ice Box to Lost Creek (515-5367).

Around the Bend Friends: This group of people, 50 years and over, interested in hiking and related social activities will meet at 8:30 a.m. Saturday in the parking lot, near Best Buy, at I-215 and West Charleston Boulevard for an easy to moderate three hour hike at Fossil Ridge. Contact Guy at 286-0014

Red Rock, Blue Diamond Overlook: April 30, a moderate two and one-half-mile hike crossing the Wheeler Springs area to a bluff overlooking Blue Diamond (515-5367).

Red Rock, Skull Rock: May 1, short, easy to moderate two-mile hike to Skull Rock (515-5367).

Zion National Park: Variety of ranger-led activities, including many hiking trails ranging from short walks to strenuous adventures, visitor center programs, bicycling and bird watching through September. For information, log on to www.nps.gov/zion or call (435) 772-3256.

BIKES

Las Vegas Valley Bicycle Club: The Las Vegas Valley Bicycle Club will have a 6 a.m. moderate to fast 15-20 mile, leader in front/leader sweeps, group road ride on Wednesday through Desert Shores, Sun City and Summerlin. Meet at the Nu Vision Cyclery on West Lake Mead between Rampart Boulevard and Scholar Lane. (Danny or Mike at 228-1333). There will be a 45-plus mile, moderate and hilly, ride on Wednesday and Thursday at 8 a.m., and a 30- to 50-plus mile long-grade ride on Saturday at 8 a.m. Meet behind Starbucks on West Charleston Boulevard and Town Center Drive. Additionally, there will be easy ride over 25 to 29 miles of flat land on April 30 at 8 a.m. Meet at Einstein Brothers Bagels, 8400 W. Cheyenne Ave. (Eric at 873-6256 or Hal at 407-3077).

Green Valley Cyclists: Join the Green Valley Cyclists at 8 a.m. on Saturday in the Brooklyn Bagel parking lot, near the corner of Green Valley Parkway and Pebble Road in Henderson. For more information, www.greenvalleycyclists.org (501-9771).

Tour de Cure: Registration is open for the Diabetes Association's Tour de Cure scheduled for May 13 at Discovery Park in Henderson. Bike routes are available for everyone, including 100K, 50K and 25K routes. For more information, to volunteer, or to register, visit tour.diabetes.org or call Anita Falconetti 379-0393.

Silver State Bicycle Coalition: A group promoting safe bicycling offers "Enjoying Bicycling" classes for adults the third Wednesday of each month. For information e-mail, ssbcnv@yahoo.com.

Orange County Wheelmen: First 150-mile roundtrip Cinco de Mayo ride May 6-7 from the Irvine, Calif., Amtrak Station to Del Mar, Calif., and return. Check www.ocw.org/Fiesta 150/Default.asp or look for a link at www.VEGASBikeClub.org/page_rides.html.

OTHER PROGRAMS

Red Rock, basic rappelling: Tuesday, challenge while harnessing up and hanging 150 feet off the side of a sandstone cliff, then descending (515-5367).

Tonopah Astronomical Society: A chapter of the Astronomical Society of Nevada-Las Vegas, will have its second annual Central Nevada star party Wednesday through April 30 in Alkali. For information, log on to as.astronomynv.org or e-mail jim@astronomynv.org.

Cathedral Gorge State Park: Meet at the campground amphitheater at 7:30 p.m. Saturday to learn about the common and migratory birds of eastern Nevada. Call the park office at (775) 728-4460 for more information.

Sloan Canyon: Get Outdoors Nevada staff are looking for 30 to 50 volunteers to assist them in picking up trash and debris in the National Conservaton Area on Saturday. Clean-up may be on uneven ground and require bending, lifting and/or carrying heavy objects. Call Jim Cribbs at 515-5234.

Boating: The Las Vegas Sail and Power Squadron will present boat-handling courses for sail and power boaters from 7-9 p.m. Wednesday evenings starting May 17 through May 31 at the Nevada Department of Wildlife offices, 4747 W. Vegas Drive. For more information, call Clint Moore at 255-3590.

Red Rock, Canyon Clean-up: Join Red Rock staff Thursday morning to help keeping the canyon clean (515-5367).

Zion National Park: Shuttle buses provide scenic drives to all trail heads and points of interest along the Zion Canyon and Springdale Loops through October. No pets are allowed. For information, log on to www.nps.gov/zion or call (435) 772-3256.