Trinity River Audubon Center has 5 miles of established trails and many acres of wetland ponds and grasslands. Use your muscle to benefit these diverse ecosystems when you help clear and expand existing trails, remove invasive species, or restore prairie and wetland habitats. Projects vary monthly and may be cancelled due to weather. This is a great team-building opportunity, ideal for both youth and adults groups. 9a.m.-12p.m. the second Saturday of each month. This opportunity is open to the general public.