These events are designed for families with kids, teens, and adults with sensory-processing differences, autism spectrum disorder, or developmental disabilities. Robinson Nature Center exhibits, trails and outdoor play area open early. Enjoy self-paced activities including sensory bins and pathways, scavenger hunts, crafts, or planetarium movies. Preregistration recommended.

Information: 410-313-0400, www.howardcountymd.gov/RobinsonNatureCenter.

All ages welcome. $5 per adult, $3 per child; free for center members and anyone 0-3 years.