This document summarizes Cage Chung's experience sharing about Google I/O 2018. It provides details about the 3-day event, including 27 meetups, 163 sessions, and over 7,000 attendees. It lists the different sandboxes and sessions available, including those related to Google Cloud, Android, AR/VR, and machine learning. It also shares tips for transportation, accommodation, shopping, and bringing gifts from the event.