Explore the best things to do in Hakone in 2025 — from relaxing in traditional onsens (hot springs) and riding the scenic Hakone Ropeway over volcanic Owakudani to cruising Lake Ashi with Mt. Fuji views, visiting art museums like the Hakone Open-Air Museum, and discovering historic shrines and cultural experiences. This complete guide includes practical travel tips, seasonal highlights, and transportation advice to help you plan an unforgettable trip to this nature-rich Japanese getaway.