Exploring Geology at the Huyck Preserve. 10 a.m. The rocks of Rensselaerville record local history from long before dinosaurs. Explore the local geology and deep-time history on a walk along the falls with Dr. Charles Ver Straeten of the New York State Museum. Semi-rugged walk; sturdy footwear required. Cost of event: Huyck Preserve members, free. Non-members, $5. Registration required:

The annual Rensselaerville Ride, hosted by Helderberg Brewery, will take place on Sunday, August 19 at 7:30 am on the Carey Institute for Global Good campus in Rensselaerville. Register at www.bikegreg.com/renssealervilleride. For more information visit www.renride.com or contact Rebecca Platel at the Carey Institute (518) 797-5100.

Woodpecker Walk at Schoharie Crossing State Historic Site (Fort Hunter, NY) - Join an environmental educator on Wednesday, August 8th at 5:30 P.M. at Schoharie Crossing State Historic Site at 129 Schoharie Street, Fort Hunter, NY 12069.

Sunday, Aug. 5, at 10:00 a.m.: Dog Days of Summer at Thacher Park. Join us with your furry friends as we adventure through the park. Learn how to keep your dog cool, hydrated, and comfortable when exploring in the summer heat. We will begin at the LaGrange Bush parking area. Proof of recent vaccinations and six-foot leash (maximum) are required.  Call 518-872-0800 to register. Park entrance fee is $6 per vehicle.

Mohawk-Hudson Cycling Club runs a Sunday morning ride in the Voorheesville/Altamont area. About 15 miles. Good for casual and occasional riders. Helmets required. 7:15 a.m. Hannaford Supermarket parking lot in Voorheesville. 518-428-8993.

Pot-luck and Evening Hike at Lake Myosotis Beach. 6:30 a.m. Enjoy a relaxing evening with community members and friends over a shared meal at the lake and an evening hike on the night of the full moon. We hope you join us for this fun mid-summer event! All welcome. Please bring a dish to share.

Mohawk Hudson Land Conservancy Hike-a-Thon at Huyck Preserve. Come hike the Huyck as part of MHLC’s annual Hike-a-thon event! Kelly Martin, local animal rehabilitator, will lead participants on a light walk and then conclude with a close look at her rescued animals. Head to www.mohawkhudson.org/hike-a-thon-2018 for more details. 10 a.m.

Summer Celebration and Hike-a-thon at 10 a.m. Multiple Locations in the Helderbergs (Indian Ladder Farms)  Offerings will include guided hikes, treasure hunts, outdoor yoga, animal tracking, outdoor art workshops, and more. Outings begin at 9 a.m. and Indian Ladder Farms at 12 p.m. https://mohawkhudson.org/hike-a-thon-2018/

History Paddle: Join Town Historian Susan Leath for a guided kayak paddle along the Hudson River and Vlomankill. Experience the historic Nicoll-Sill House, Winne’s dock, Parda Hook and, if the creek is passable, the waterfall on the Vlomankill.   Please arrive in time to unload and be on the water by 6 p.m. at the Henry Hudson Park kayak launch. Pre-register with the Town of Bethlehem Parks and Recreation Department, 518-439-4955 option 3.

iMapInvasives Training and Invasives Walk at Thacher Park from 9:30 a.m. – 2:00 p.m. Learn how to monitor and report invasive species locations and enter them into New York’s invasive species database. Training includes an introduction to invasives, identification basics, and practice outdoors. Please register at http://www.nyimapinvasives.org/thacher-park-imap-training-registra.