The mango bingsu at the window of The Lounge Sky, 38th floor, Lotte Hotel Hanoi. Hanoi spread out below the window.
Direct Answer & TL;DR
I had mango bingsu (a Korean shaved-ice dessert) at two Lotte-group hotels in Hanoi. On October 5 it was LUSH at L7 West Lake. On October 18 it was The Lounge Sky on the 38th floor of Lotte Hotel Hanoi. The mango tasted about the same. Lotte Hotel won on view and mango portion, and L7 won on price. If I ate it again, I’d go to Lotte Hotel. If you are a Lotte Hotel Rewards member, show the app when you pay and ask if a discount applies.
| L7 West Lake LUSH | Lotte Hotel Hanoi The Lounge Sky (38th floor) | |
|---|---|---|
| Date · time (local) | 10/5 13:00 | 10/18 15:30 (paid 15:50) |
| Ordered | Mango bingsu, strawberry mini cake | Mango bingsu |
| Menu price | 350,000 VND | 520,000 VND |
| Discount | 10% hotel guest → 315,000 VND | 5% Lotte Hotel Rewards member → 494,000 VND |
| 5% service charge + 8% VAT | 357,210 VND | 560,196 VND |
| Total paid | 357,210 VND (₩18,539, ~$13) | 560,196 VND (₩29,018, ~$21) |
At both places, a 5% service charge and 8% VAT were added on top of the menu price. The discount comes off the menu price first, and the service charge and VAT are added after it. The Lotte Hotel receipt matched to the dong in that order, and I worked out the L7 menu price by running the same calculation backwards. Vietnam’s VAT is temporarily reduced from 10% to 8% through the end of 2026.
| Category | Preferred | Why |
|---|---|---|
| View | Lotte Hotel Hanoi | From the 38th-floor window you see all of Hanoi below |
| Taste | Both | The mango tasted similar, and the ice seemed to be the same |
| Mango portion | Lotte Hotel Hanoi | Cube-cut mango piled high. L7 had fewer round mango scoops |
| Presentation | Lotte Hotel Hanoi | Dry ice smoke pours down from under the bowl |
| Price | L7 West Lake | Lower menu price, and the guest discount is 10% |
Table of contents
October 5: Mango bingsu at L7 West Lake’s LUSH
It was the day before the last day of our 7N8D family trip (#9). We got off the city tour bus and went back to the hotel. I’d heard the mango dessert was good at LUSH, the hotel’s coffee and dessert lounge, so we ordered the mango bingsu and a strawberry mini cake. As hotel guests, we got 10% off.
1pm on October 5, the mango bingsu at L7 LUSH. A second bowl sat on a bowl of ice.
The mango came in round scoops, with lychee tucked in between. Ice cream sat on top, and the red bean and three sauces came separately on the side. Each of us took some of the bingsu and added the sauce we wanted. The mango was really good. The kids said the fresh mango was really good too.
October 18: The Lounge Sky, 38th floor of Lotte Hotel Hanoi
Two weeks later I went to The Lounge Sky on the 38th floor of Lotte Hotel Hanoi with a friend. My friend wanted to try it, so I tagged along. I hadn’t planned to compare it with L7. But when the bingsu arrived, I thought of the mango bingsu I’d had at L7 two weeks earlier.
3:30pm on October 18, the 38th-floor window. Smoke rose from under the bowl and poured down toward the floor.The bingsu was fresh mango cut into cubes and stacked like a pyramid, with whipped cream and mint leaves on top. The sides came in three small bowls, and one of them was condensed milk.
White smoke kept rising from under the bowl and flowed down off the table. I asked the staff, “What is this?” and they told me it was dry ice. My friend and I found it fascinating together.
I wasn’t a guest at Lotte Hotel Hanoi, so there was no guest discount. I had signed up for Lotte Hotel Rewards two weeks earlier, when I stayed at L7 West Lake. When I paid, I showed the Lotte Hotels app and asked if a discount applied, and a 5% Rewards member discount was taken off. I paid with a Hana Travel GO debit card (Visa), and the overseas merchant fee was waived.
The Lotte Hotels app I showed when paying. My tier is MEMBER, the lowest one.
The discount rate depends on your tier. Lotte Hotel Rewards changed to five tiers on September 7, 2026: MEMBER, SILVER, GOLD, PLATINUM and DIAMOND. According to the official page, the hotel food and beverage discount is 5% for MEMBER and SILVER, 10% for GOLD and PLATINUM, and up to 15% for DIAMOND. The 5% I got is the MEMBER rate.
Similar mango, more mango and a better view at Lotte Hotel
Having eaten both, I found the mango tasted similar, and the ice seemed to be the same. The difference was in the amount of mango. L7 had few round mango scoops on top, while Lotte Hotel piled on plenty of cubes.
L7 was cheaper. The bingsu and cake together cost less on the menu than Lotte Hotel’s bingsu alone, and the guest discount is bigger than the Rewards member discount. Still, if I ate it again, I’d go to Lotte Hotel. The view of Hanoi from the 38th floor, the generous mango and the dry ice presentation were all good.
📍 Lotte Hotel Hanoi · 54 Liễu Giai, Cống Vị, Ba Đình, Hà Nội
Lotte Hotel Hanoi is in the Lotte Center Hanoi building. The Lounge Sky is on the 38th floor.📍 L7 West Lake Hanoi by LOTTE HOTELS · Alley 683, Lac Long Quan Street, Tay Ho Ward, Hanoi, Vietnam
L7 West Lake, in the Lotte Mall West Lake complex. LUSH, where I had the mango bingsu, is inside this hotel.🔗 References
- LOTTE HOTEL HANOI About — The Lounge Sky on the 38th floor, Tim Ho Wan and Red River on the 36th floor
- Vietnam: Extension of the Reduced 8% VAT Rate to 31 December 2026 (DFDL) — Resolution 204/2025/QH15, VAT cut from 10% to 8% through December 31, 2026
- L7 West Lake Hanoi by LOTTE — LUSH Salon: coffee and dessert lounge
- Lotte Hotel Rewards: Benefits by Tier (Korean page) — revamped September 7, 2026; hotel F&B discount 5% for MEMBER and SILVER, 10% for GOLD and PLATINUM, up to 15% for DIAMOND
- West Lake Rest, Hoan Kiem Tour Bus, Home (Hanoi & Sapa #9)