Seattle Like a Local on Instagram: "🐟✨ Salmon Days in Issaquah — Behind the Scenes at the Hatchery Every October, salmon return to their birthplace — and the Issaquah Hatchery turns into the heart of the celebration. 🎉 Volunteers and biologists here work year-round to help salmon populations recover. The fish you see leaping upstream are mostly Coho, and at the hatchery, they’re gently collected for spawning — that means collecting eggs and milt (sperm), fertilizing them, and raising the baby