Grounds Open through Labor Day 8 am to sunset. Railway Garden Open Friday, Saturday, Sunday, trains run 10 a.m. to 3 p.m. Celebrate with a walk 🥾in nature. Pack a picnic 🧺 and enjoy the views and the wetlands. Grab your camera 📷 to capture all the blooms of the prairie.Visit the council oak tree 🌳 to marvel in its size and beauty. PNW students receive FREE admission to the arboretum. Students please use the intercom on the gate kiosk to contact a member of the arboretum staff to verify your information and open the gate for you.