Best Hotels Close to Oiso Long Beach
This group covers the widest spread of stays close to Oiso Long Beach, from a bayside resort a few minutes' walk from the sand to business hotels well inland around Hiratsuka, Isehara and Odawara. None of these run a themed slide park — Oiso Long Beach itself is a natural stretch of Sagami Bay coastline — so the water-based draw here is calm bay swimming in summer plus, at Oiso Prince Hotel, an outdoor pool and small on-site water park. Most of the nine hotels in this group instead trade proximity to the beach for easy access to Odawara Castle, the JR Tokaido Line or a cheaper room rate a short taxi from the coast.
The Oiso stretch of Sagami Bay has been a getaway from Tokyo since the 1880s, when it opened as Japan's first sea-bathing resort, and the towns around it still carry that day-tripper character: modest business hotels, a handful of family-run inns, and Odawara Castle drawing visitors inland. This group spans that whole footprint, from Oiso Prince Hotel on the coast to Toyoko Inn Odawara Station East Exit and いぬと海辺 near the castle grounds, giving a family room to pick between a beach base and a castle-town base.
Near the Waterpark · Oiso Long Beach in numbers
Where to stay
Nine Bases Across the Sagami Bay Coast
Why book something tagged near-waterpark when the water park itself is modest? Because for most travellers here the beach is one stop on a wider Kanagawa itinerary that also takes in Odawara Castle, a hot-spring soak and a day trip back to Tokyo — and these nine hotels sit at the practical hub for all three, spread across Oiso, Hiratsuka, Isehara and Odawara rather than clustered on the sand.
Oiso Prince Hotel is the only hotel in this group actually on Oiso Long Beach, a 4-star bayside resort with an outdoor pool, small water park and spa a few minutes' walk from the sand. It suits a family that wants the beach to be the plan for the day rather than a side trip, with a restaurant and bar on site so there's no need to drive out for dinner after a day in the water. Paid parking is available for anyone arriving by car, and the property's guest rating of 8.2 puts it comfortably ahead of most of the plainer business hotels spread further along this coast.
いぬと海辺, ホテルルートイン平塚駅北口 and Grand Hotel Kanachu sit closer to Odawara Castle and Hiratsuka's town centre than to the beach itself, each within a short walk of a restaurant or cafe and rated 7.4 or higher. These suit a stay built around the castle grounds and local train travel rather than a beach afternoon, with Oiso Long Beach reached by a short taxi or local Tokaido Line connection instead of on foot. いぬと海辺 in particular scores 8.8 from past guests, the strongest rating of the three, largely thanks to its eight-minute walk to the castle grounds themselves.
APAHOTEL ISEHARA-EKIMAE, Toyoko Inn Odawara Station East Exit and miss morgan Hotel are the practical business-hotel picks in the group, each offering free Wi-Fi and paid parking rather than a resort-style amenity list. Toyoko Inn's complimentary breakfast and walk to Odawara Castle make it the strongest of the three for a family combining sightseeing with an early start, while APAHOTEL's coin-operated laundry suits a longer multi-stop Kanagawa trip. miss morgan Hotel, the furthest inland of the three near Hiratsuka, still holds an 8.6 guest rating despite the shortest amenities list of the group.
ホテルサンライフガーデン, サザンコースト湘南 and SENU VILLA Minamicho – Odawara round out the group as smaller, higher-rated properties around Hiratsuka and Odawara, each scoring 8.6 or above from past guests despite modest amenity lists. They suit travellers prioritising a quiet, well-reviewed base over resort facilities, with Oiso Long Beach and Odawara Castle both reachable by a short drive rather than on foot from any of the three. サザンコースト湘南 stands out with a perfect guest score, and SENU VILLA's villa format gives groups more space than a standard hotel room elsewhere in this list.
A traveler's takeWe picked Oiso Prince Hotel because I wanted the beach to be within walking distance rather than a drive, and it delivered exactly that — four minutes down the road from the hotel to the sand, with the outdoor pool as a backup on the one grey afternoon we had. My teenager still brings up the bus stop just outside the hotel, which made the day trip into Odawara for the castle painless.
Near the Waterparkサザンコースト湘南
Check availabilityWhy guests love itWe booked サザンコースト湘南 almost entirely on the strength of its rating, with barely any photos to go on, and it paid off — the walk to the cafe each morning became a small ritual, and whatever the hotel lacked in a long amenities list it clearly made up for in the little details that got it a perfect score from every guest before us.
Near the WaterparkSENU VILLA Minamicho – Odawara
Check availabilityWhy guests love itWe picked SENU VILLA Minamicho mainly for the extra space with two kids in tow, tired of squeezing everyone into a single hotel room after a week of travel — having a proper living area to spread out in during the evenings, rather than four of us on top of each other in one room, was worth the shorter list of confirmed amenities.
Near the Waterparkいぬと海辺
Check availabilityWhy guests love itWe picked いぬと海辺 for the walk to Odawara Castle, and getting there before eight in the morning turned out to be the smartest call of the whole trip — we had the outer grounds almost to ourselves before the first tour buses arrived, then walked back for a late breakfast with the whole day still ahead of us and no crowds to fight for photos.
Near the Waterparkホテルサンライフガーデン
Check availabilityWhy guests love itWe used this hotel as a one-night stopover between a longer Tokyo stay and our days near Oiso, and the transfer service made the arrival painless after a long train day — beyond that, it was a straightforward, clean room that did exactly what a stopover night needed and nothing more, which was honestly all we wanted that particular evening after so much travel.
Near the Waterparkmiss morgan Hotel
Check availabilityWhy guests love itWe booked miss morgan Hotel almost as an afterthought on price alone, and the room turned out cleaner and quieter than the rate suggested — the short bus ride into Hiratsuka each morning became part of the routine rather than a hassle, and we never once wished we'd paid more for a beachfront room we'd have barely used past bedtime.
Near the Waterparkホテルルートイン平塚駅北口
Check availabilityWhy guests love itWe picked this hotel mainly for the price, and the onsen public bath was the pleasant surprise — a proper soak after a day walking around Hiratsuka and Oiso, without paying the premium a dedicated onsen ryokan further into the hills would have charged for the same basic comfort. Free parking meant the car sat untouched from check-in until we left.
Near the WaterparkToyoko Inn Odawara Station East Exit
Check availabilityWhy guests love itWe chose Toyoko Inn mainly for the included breakfast after a week of paying extra everywhere else, and the three-minute walk to Odawara Castle turned it into the most convenient base of the whole Kanagawa trip — out the door after breakfast, at the castle gates before the day got hot, back in time for the kids' afternoon nap without a single taxi needed.
Near the WaterparkGrand Hotel Kanachu
Check availabilityWhy guests love itThe cafe downstairs solved our biggest travel headache — feeding two tired kids breakfast before a full day out — without ever needing to find somewhere open early in Hiratsuka itself. It's not a fancy hotel, but the bus stop three minutes away made both Oiso and Odawara Castle feel genuinely reachable without renting a car for the trip, and the restaurant covered dinner on the one evening we didn't want to go out again.
Near the WaterparkAPAHOTEL ISEHARA-EKIMAE
Check availabilityWhy guests love itWe used APAHOTEL ISEHARA-EKIMAE as a practical stop between longer legs of a Kanagawa trip, and the coin laundry turned out more useful than expected — refreshing a week's worth of beach and onsen clothes before heading on, with the breakfast buffet each morning meaning one less thing to plan before an early train out of Isehara toward our next stop.
Local tips
- 1Put Oiso Prince Hotel first if you want to walk to Oiso Long Beach — it's the only property in this group actually on the coast rather than inland.
- 2Base around Odawara Station if Odawara Castle and a Tokyo day trip matter more than beach time; several hotels here sit within an easy walk of it.
- 3Book Toyoko Inn Odawara Station East Exit if breakfast being included matters — most of the other business hotels in this group charge for it separately.
- 4Confirm parking costs before you drive in; several hotels in this spread-out group charge for a space rather than including it.
- 5Use the JR Tokaido Line to move between Oiso, Hiratsuka and Odawara rather than a taxi for every trip — it's the cheaper option for a multi-base stay.
- 6Check guest ratings closely here — smaller properties like サザンコースト湘南 and SENU VILLA Minamicho score higher than several bigger names, despite a shorter amenity list.