Where should we go, July 3 to 5?
The long weekend is Friday to Sunday. Three options, the same questions for each — read across (swipe on a phone), then we'll settle it in the chat.

Numazu & Mishima
two Tokaido towns about an hour out — Mishima's spring-water eel and Numazu's working fish port

Atami
a hot-spring town on the coast, one of the closest to Tokyo

Kurobe
a hot-spring gorge town reached by one direct shinkansen, and a high alpine route beyond it
getting there
about 1 hr 10 min
about 1 hr
about 2 hr 48 min
cost per adult
about ¥4,460
about ¥2,190
about ¥12,510
weather
—
Normally rainy season, warm and humid by the sea
Normally rainy season, and the mountain is cold
where to stay
Three stays, about ¥19–29k/person — an onsen hotel with a free Mishima shuttle, the suspended-sphere INN THE PARK, or onsen domes; reservable private baths.
Four stays, about ¥21–39k/person — family resorts and buffet hotels, most a short shuttle or taxi from the station.
Four ryokan in Unazuki, about ¥24–85k/person with two meals — private family baths are common, a 2–5 min walk from the station.
with a three-year-old
Easy and rain-proof — a deep-sea aquarium, an indoor play park, and animals at a spring-fed park three minutes from Mishima station.
Easy — an indoor pool, the castle play floor, and a flat seafront to stroll.
Plenty of easy things in the onsen town — free museums, footbaths, a ranch with animals. The alpine route is the optional hard day, not a must.
food
The strongest food of the three — Mishima eel shinise from 1856, Numazu-port seafood bowls, and old Showa kissaten, most of it walkable or one stop apart.
A dense, rain-proof food-walking scene by the station — seafood, himono, kissaten, pudding.
Sparse — white shrimp and the kamameshi at Kajika; the best sushi is in Toyama, on the way.
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