Emerald Pool is compact. That is part of its appeal early in the day and its weakness once several tour groups arrive. Visitors expecting a remote lagoon may be surprised by the ticket gate, paths, changing areas and steady flow of people.
The strongest version of the day starts early, uses the scenic forest path if conditions suit and treats the Hot Spring Waterfall as a separate short soak. Blue Pool adds colour and quiet viewing when its trail is open, but it is never a swimming stop.
It is most worthwhile for travellers spending several days around Krabi who want one land-based nature day. If time is short and beaches are the priority, the fees and road journey may rank below an island trip.