3 / 5 / 7 day ideas

Rough local HKD bands (ex-flights unless noted).

3 days

Tokyo sprint or Osaka food weekend. Budget local ~HK$3,500–4,500; mid 5,500–7,500; high 10,000+.

5 days

Tokyo + Fuji/Hakone or Osaka + Kyoto + Nara. Budget local ~HK$6,500–8,500; mid 10–14k.

7 days

Tokyo⇄Osaka via shinkansen (see JR Pass), or Hokkaido / Okinawa focus. Budget local ~HK$9.5–12k.