Start your day early at Shinjuku, escaping the city's hustle aboard a comfortable air-conditioned coach. As the skyline fades, the scenery shifts—urban concrete gives way to lush mountains, and the breeze begins to smell like the sea. Arrive at Omuroyama, a perfect cone-shaped extinct volcano, often compared to a giant matcha pudding. A 6-minute scenic chairlift ride takes you to the summit, where a 360-degree circular trail offers panoramic views of snow-capped Mt. Fuji, the vast Sagami Bay, the rolling Hakone mountains, and Izu’s Seven Islands floating in the Pacific.

Next, head to the Izu Cactus & Animal Park, a whimsical world where tropical plants and friendly animals coexist. Squirrel monkeys and kangaroos roam freely—feel free to interact. Explore five themed greenhouses featuring over 1,500 cacti and succulents from around the world. Try a DIY succulent potting experience and take home your handmade creation. In winter, soak up the cuteness as capybaras enjoy their own hot spring baths.

Board the Resort 21 limited express from Izu-Kogen Station. The windows open up to surreal blue seascapes. Sometimes the ocean seems close enough to touch, sometimes it stretches endlessly into the sky. The 5-minute segment between Katase-Shirata and Izu-Inatori is a once-in-a-lifetime experience. The train hugs the cliffs, waves crash just outside your window, and the sea stretches unbroken into the horizon.

Arrive at one of Izu’s best-kept secrets: the Jogasaki Coast. Shaped by a volcanic eruption 4,000 years ago, the rugged lava cliffs here meet the cobalt sea in dramatic fashion. Dare to cross the Kadowaki Suspension Bridge, 48 meters long and 23 meters high, suspended above roaring waves. Stroll the Jogasaki Nature Trail, a 9km path with epic viewpoints and volcanic rock formations.

Before returning to Tokyo, make a quick stop at Ito Marine Town — a seaside rest area with local food, omiyage shopping, and ocean views. Try regionally made sweets and ice cream, pick up unique souvenirs and hot spring skincare goods, and snap Instagram-worthy shots of the colorful seaside buildings.