Hakone Kowakien Yunessun, Hakone-machi

Went there for the day. Haven't been in a few years but it was much nicer. They brought the themed baths all inside like the wine, sake, green tea baths and have renovated much of the interior and expanded some of the outdoor baths. Quite clean now and great to bring kids or even friends from abroad for a good taste of Japanese bath culture.

Yunessun is a hot spring theme park. It's unique, very interesting and fun place to go with your family. We visited in January so we were mainly indoors, but they do have some outdoors features and they have summer version also. Do try the feature spas - coffee, wine, green tea and sake. Everything is very well organized (lockers, bags, clothes etc.) There are nice food options inside and there is a big souvenir shop at the end. Simply amazing. We would definitely go again if we visit Japan.

Great place to relax. I highly recommend paying the 100 yen for the fish to eat the dead skin off your feet. Make sure to bring a towel otherwise you will need to rent one for 100 yen. Also, stick around for when they "refill" the coffee and wine pools :D The best time to go is around 2-5pm on a weekday as there is hardly a crowd.

Very fun place to visit, one level for traditional onsen and another level for the themed baths, there's also an outside area with slides and a nice view of the mountain. They have their instructions and map in English which helped a lot. They also have special price for couples which is a really good deal.

Expensive. Not really a proper spa experience with no place to rinse or cool down between the specialty pools. Aka get out of the coffee and into the wine, or the main pool. There were also kids everywhere, including babies in diapers in the hot tubs. The fish pool was an additional fee on top of the already expensive day pass, but it was an interesting experience and probably the best part of that side of the resort. We spent around $100 to stay for the day and do both the specialty and the traditional onsen. I much preferred the traditional side, but we spent most of our time in the novelty side so my husband and I could stay together.