Personally I like Grand Josun Hill Suites Jeju I've visited three times this year alone~ If you like quiet places, I recommend it!
This accommodation gave me the best trip. I really understood why it is rated 5 stars and why people pay more to stay at an expensive hotel. I attended yoga classes every day, used the sauna and pool, and the breakfast was also very tasty.
The service was generally satisfactory. However, the Aria Buffet breakfast was overall low quality. Also, I was assigned a first-floor room, and while soaking my feet in the jacuzzi I had an awkward moment making eye contact with guests walking on the outdoor promenade😅

It was the best. Really wonderful.
The service was flawless. Staff responsiveness and friendliness were excellent. Perfect.

Pros 1. Unlike the main building, a more private atmosphere and service 2. Facilities are relatively more luxurious and comfortable (Using the sauna, pool, Grang J, etc., you encounter fewer people and it was generally quiet) 3. The friendliness and service could not have been better 4. I think the room condition and view are among the best in Jeju Cons (depends on the situation) 1. The main building has more sights and things to enjoy in the main hall (Moving from the quiet new wing to the main building gives a more lively feeling) 2. Therefore, the hassle of moving to the main building 3. The pool seems to need a bit of maintenance (The Heavenly Pool outdoor pool needs cleaning for water stains) I made great memories at Grand Josun Jeju and it was wonderful.

The facilities are nice and clean. They are well maintained.
Check-in after 15:00 / Check-out before 11:00
Bath Amenities provided: Shampoo, Conditioner, Body Wash, Body Lotion (Grand Josun The Moment large size)
Excludes toothbrush, toothpaste, razor (available for a fee upon request)
1. Additional guest fees are 22,000 KRW per person per night for guests aged 7 and above (including VAT).
2. Adding bedding incurs a charge of 22,000 KRW per night (including VAT), and adding an extra bed incurs a charge of 55,000 KRW per night (including VAT).
※ Children under 7 years old using existing beds in the room can stay for free.
※ All additional fees can be paid at check-in.
1. Dining establishments: 10% discount (excluding EAT2O, IRD)
2. Ancillary facilities: Unlimited use (Kids Club has paid programs)
※ Ancillary facilities and dining establishments in the Hill Suite building are only available to guests staying in the Hill Suite building.
※ For more details regarding the use of ancillary facilities, please refer to the official website.
ARIA (Buffet): 7:00 AM – 10:30 AM
ARIA: Main Building 1F (Breakfast/Lunch/Dinner Buffet)
Lounge & Bar: Main Building 1F
Josun Deli: Main Building 1F
EAT2O: Main Building 1F
Gran J: Hill Suite Building 1F
※ Advance confirmation of operating hours is required.
Garden Pool (Cabanas): Main Building 1F
Peak Point Pool: Main Building Rooftop (Adults only)
Fitness/Sauna: Main Building 1F
Coin Laundry: Main Building 1F
Josun Junior Kids Club: Main Building 2F
※ Advance reservation required for paid kids programs.
※ For more details regarding the use of ancillary facilities, please refer to the official website.
Heavenly Pool: Hill Suite Building 6F
GX Room & Sauna: Hill Suite Building 3F
※ Please check operating hours, break times, and closure days for each facility in advance, as they may vary depending on on-site conditions.
※ For more details regarding the use of ancillary facilities, please refer to the official website.
Complimentary parking for guests
All rooms are non-smoking
Hill Suite Sauna: Closed on the second Tuesday of every month.
※ For more details, please refer to the Grand Josun Jeju official website.
Children allowed
~12
Fee: Free