HOTEL THE MITSUI HAKONE: Notes for Luxury Agents

The short answer

HOTEL THE MITSUI HAKONE opens on 15 December 2026 in Kowakudani, Hakone. All 126 rooms have their own bath fed by the hotel's natural hot spring. It is the second HOTEL THE MITSUI after Kyoto. Explera DMC requests rooms for VIP clients, couples and small luxury groups through its Japan desk.

Agencies selling Japan at the top end have a new Hakone resort to offer this winter. Our Japan team covers it in its HOTEL THE MITSUI HAKONE note; this page is the short version for agencies selling Japan alongside our other destinations.

What Is HOTEL THE MITSUI HAKONE?

Opens on 15 December 2026 in Kowakudani, Hakone, in Kanagawa Prefecture.
126 rooms, suites and villas, each with its own bath fed by the hotel's natural hot spring.
A site of about 135,500 square metres, on land once used as a Mitsui family villa.
The second HOTEL THE MITSUI, after HOTEL THE MITSUI KYOTO, run by Mitsui Fudosan Resort Management.
Japanese dining and a spa. Kaiseki, sushi and teppanyaki, plus a thermal spring spa for treatments.

Which Clients Does It Suit?

VIP clients and couples who would rather bathe in private than in a shared onsen.
Clients with tattoos. A bath in the room avoids the rules of a shared bath.
Small luxury groups. We hold rooms for small groups and private families once dates are fixed.
Tokyo itineraries. Hakone is an easy transfer from Tokyo, so the stay fits at the start or end of a trip.

An outdoor natural hot spring pool in a forest

How Do We Book It?

Request early. A new hotel fills its first season fast, so we request rooms as soon as clients choose dates.
Check the room type. Rooms, suites and villas differ in size and outdoor space, so we match the room to the client.