Click Here to Learn More and Get Started Fundraising for Endeavour PTSA!
Early Bird Pricing ($25) ends in February - don't miss out!
Register for Issaquah Schools Foundation's Monster Mash 5k and select Endeavour when you register! The school with the highest participation will be awarded $500!
Sign ups are now open: Monster Mash 5k
When: October 25, 2025 at 10am
Where: Lake Sammamish Boat Launch
Issaquah, WA 98029 US