Mercer Slough Environmental Education Center

Wetland Waddlers

Explore Mercer Slough with your preschooler and grow a connection to the natural world! Each two-hour class includes art, play and story time designed around a seasonal theme.

Wetland Waddlers

Register Now for Wetland Waddlers

Reserve you and your early learner’s spot in one of our upcoming sessions of Wetland Waddlers at Mercer Slough!¬†Registration for the next session of Wetland Waddlers closes on the Friday before the program date at 11:59 p.m.¬†For questions, call (206) 443-2925 or email

Program Details

  • Time: Saturdays, 9:30-11:30 a.m.
  • Ages: 2.5-4, with a parent or guardian*
  • Cost: $20, or $15 for Pacific Science Center Members

*We understand that finding childcare for siblings can be difficult. While activities are designed for children ages 2.5-4, siblings younger than age 2.5 are welcome to accompany participants free of charge. For siblings older than age 4, please contact

All ticket sales are final and nonrefundable. We reserve the right to cancel a session if enrollment is insufficient and will contact registrant for a full refund. We will notify registrant at least 48 hours prior to the event start time.

Upcoming Dates

June 29: Slough SENSE-ations
Join us for a sensory-filled day of seeing, hearing, feeling, smelling, and yes, even tasting different things in nature.

July 20: Colorful Nature
When summer is at its peak, the wetland is alive with colors and patterns to explore.

August 10 Trees, Please
Meet the trees of Mercer Slough, from their green leaves to their deep roots.

Learn more about this fascinating program in this quick PacSci Podcast:

Mercer Slough Environmental Education Center