The key decision is the POOL GUARANTEE GAP. A Sea View room can be written into the room product you buy. The outdoor pool cannot be guaranteed months in advance in the same way. The Chinese source records a 2026 pool season from 5 June to 11 October, with weather conditions able to suspend operation and no room-rate refund simply because the pool closes.
What is contractable and what is conditional?
- Room type and view: can be fixed in the booking contract.
- Pool season: date-dependent; outside the announced season, value is zero.
- Same-day pool operation: weather can still remove access.
- Room-rate protection: the source explicitly warns that pool closure does not create a room refund.
Choose this hotel for Tapdong first, pool second
The stable value is the Tapdong location: black pork street, Dongmun Market and the waterfront remain useful even if the pool is unavailable. If those are the real reasons for staying here, the property can still work without the pool. If the pool is your main reason for paying more, the booking carries a failure risk you need to accept.
Late arrival reduces pool value even when it is open
The source separates shoulder-season and midsummer operating windows. For a one-night stay, returning late can reduce the practical pool window before weather is even considered. Treat “pool open” and “I have enough usable pool time” as two different questions.
Sea-view pricing must use the same room family
Do not compare a lower Standard or City View headline rate against a Superior or Deluxe Sea View room and call the difference a platform discount. Enter all guest ages first, then fix the same room class, bedding, view, breakfast and cancellation terms.
Compare exact properties only
Booking.com — Hotel Regent Marine The Blue
Agoda — Hotel RegentMarine The Blue
Use the same dates, guest ages, exact room, view, breakfast, cancellation and final tax-inclusive total. No platform is permanently cheapest.
Final decision
Choose Regent Marine more readily when Tapdong and a clearly bookable Sea View room are already valuable to you. Do not pay a large premium only for the pool unless the season, arrival time and weather risk all still make sense.