
Day trips from Tokyo, ranked
Each of these deserves a full day. Cram one into an afternoon and you'll spend most of it on trains — and do the place itself a disservice. So the ranking is simple: what you get back for the day it costs you. (Two of them, Yokohama and Kawagoe, are genuine half-days — flagged below.)
Every entry leads with the same three things — time · line · fare — so you can compare them at a glance.
1. Kamakura (+ Enoshima) — the best first day trip
56 min · JR Yokosuka Line (横須賀線) from Tokyo Station · ¥950 (~US$6) · no reservation. It drops you at Kamakura Station, a temple town by the sea. The Great Buddha sits in the open air, Hasedera's gardens look over the bay, and the lanes fill with shrine snacks. When the temples run out, the little Enoden tram rattles about 20 minutes along the coast to island.

Dinner: winds down early — much of , the snack street by the station, shuts in the evening. Eat an early dinner there or on Enoshima (the local catch is shirasu, tiny whitebait, served raw or on rice), or ride back and have dinner in Tokyo.
Why it's first: shortest ride, no booking, and it works in any weather short of a typhoon. The catch: everyone else knows — go on a weekday if you can.
2. Hakone — the scenery day
~80 min · Odakyu Romancecar from Shinjuku · ¥2,420 e-ticket / ¥2,470 paper (~US$16) · seat included. The Romancecar is a reserved-seat limited-express train, not a bus — all seats booked in advance (grab the e-ticket on the Odakyu app or site, or at any Odakyu ticket machine). itself is a loop, not a town: mountain railway up, cable car over the volcanic steam vents, sightseeing boat across Lake Ashi past the red torii, bus back down. The Hakone Freepass (¥7,100 / ~US$47 for two days) covers the whole circuit and pays for itself if you ride everything.

Why it's second: on a clear day, with Fuji out, it beats everything on this list. And the "it's a transport day" catch is really the appeal — you're carried most of the way by mountain train, cable car and boat, so it asks little of your legs. That makes Hakone a great choice for your first day off a long flight, or the day after an intense one. The one real risk is cloud, which can hide Fuji — check the forecast before you commit.
3. Nikko — the grandest, and the longest haul
1 hr 50 · Tōbu Nikkō Line (東武日光線) limited express from Asakusa — the "Spacia Kegon" train · ~¥3,050 (~US$20) · reserved seat. is the most elaborate thing the shoguns ever built — carved, gilded, layered up a forested hillside — and is a proper 97-metre waterfall, not a garden feature.

Food: Nikko's specialty is yuba (delicate rolled tofu skin) — several set-menu restaurants sit between the station and the shrine approach for lunch.
Why it's third, not first: nearly two hours each way leaves the day no slack. It rewards an overnight more than anything else here — stay a night and you can fold in Kegon Falls, Lake Chūzenji, or the period theme park without the four train hours eating a single day. As a day trip, save it for a trip of seven days or longer; on a five-day trip those four hours hurt.
4. Yokohama — the easy half-day
25–30 min · JR Tōkaidō Line (東海道線) from Tokyo Station · ¥480 (~US$3). The harbourfront at , Japan's biggest Chinatown, the where kids design their own pot. It's the one entry that genuinely works as a half day — go at 3pm, eat in Chinatown, walk the lit-up harbour, and be home by night.

Why it's fourth: it's more Tokyo, with a harbour. Enjoyable, never magical. Take it when you want an easy day, not a big one.
5. Kawagoe — "Little Edo," the other half-day
~30 min · Tōbu Tōjō Line (東武東上線) from Ikebukuro · ¥490 (~US$3). 's old merchant street of clay warehouses sits under an Edo-era bell tower, half an hour from Ikebukuro. The street is the whole show, so you'll have seen it by lunch — and that's not a knock: like Yokohama, it's a tidy half-day, which is exactly why it sits here. On a first trip, Kamakura simply gives you more for the same outing.

The maths that actually decides it
A 7-day Tokyo trip supports one day trip comfortably, two at a push. Which one wins depends on your days and your priorities — Hakone needs clear weather, Nikko needs the slack (or a night), Kamakura needs a weekday, and Yokohama or Kawagoe slot neatly into a spare half-day. That's a lot to cross-check for one decision.
Working out which day trip on which day — the length, the weather-risk, what to re-route around it — is an evening of it. We do about 80% of that legwork and hand it back in roughly a minute. Build your Tokyo plan, tell it how long you've got and what you want to do, eat and see, and the day trip lands on the day that fits, everything before and after re-routed around it. A solid first cut; move it if you disagree.
A full day-by-day plan in about a minute — free, no account.
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