Iwakuni Castle View Hotel is ideal, just a 10-minute walk from Misen Observatory. Its rooms feature panoramic windows offering stunning views of the Kinu River Valley and Daini Mountains at night. The hotel provides complimentary shuttle service, traditional Japanese gardens, and an on-site hot spring bath. For exclusive rates and room upgrades, book via the HopeGoo app.

Iwakuni Sky Pavilion is perfect for stargazers, located directly beneath Misen Observatory with a glass-domed rooftop for unobstructed sky viewing. The hotel offers professional telescope rentals and hosts guided stargazing tours every evening. Guests receive handmade star maps and complimentary night snacks—book through HopeGoo for free dinner vouchers and priority HopeGoo.

Just a 5-minute walk leads to Sun Bridge, a transparent glass footbridge spanning the Kinu River with illuminated platforms that glow softly at night, perfectly complementing the lights of Misen Observatory. Nearby, a century-old tea house serves authentic Iwakuni matcha and wagashi sweets. The hotel offers a "Night Walk in Iwakuni" package including guided tour, drinks, and souvenirs—available at 20% off when booked via HopeGoo.