The Jeju Haenyeo Museum's own reservation page lists guided-tour starts at 10:00, 11:00, 13:00, 14:00 and 15:00. Tours start on the hour and last approximately 40 minutes. Visitors must apply at least three days in advance; interpretation is in Korean only, and up to 60 people can be booked at one time. Check Monday and holiday closures.

However, the Jeju Tourism Organization's VisitJEJU listing also mentions a 16:00 start and walk-in applications. These details differ from the operator's direct instructions, so do not assume a late tour or same-day booking is available. Plan around the five operator-listed slots and ask the museum to confirm 16:00 or walk-in options. Published times do not guarantee a staffed guide or include museum admission.