Seaside Cafe at the Mansion

Marvin is the best!! We have had him serve us twice ands he’s really good, friendly and fun. Get the lobster pizza and lots of drinks while enjoying a stunning view!

The coconut shrimp and the key lime pie were absolutely divine! Everything was delicious! Highly recommend!

Seaside Café at the Mansion – Full Review
(1400 Duval St, Key West – oceanfront on the Southernmost House grounds) We walked from parking toward the Southernmost Point / pier area and saw the big “world’s best lobster pizza” sign. After the pier we went back to test if the hype was real. Arrival & Service
No wait. They seated us right away. Staff and server were friendly. Food & Drink
Ordered the promo lobster pizza and a mango-passion mojito. • Mojito was good. • Lobster pizza was okay (8/10). Not the best lobster pizza we’ve had. The hype is stronger than the actual pizza for us. View & Smell
Nice ocean view right next to the water.
The ocean smell is strong — don’t take a table too close to the water. Hygiene
Silverware was rusted and we got a dirty used utensil. The hot-sauce basket was also rusted. This is a real cleanliness concern and not acceptable for food service. They should switch to plastic or replace the metalware. Overall hygiene felt worse than places we’ve been to in Vietnam or other Asian countries. Cleanliness does not seem to be a priority here. Bottom Line
Convenient location and friendly service, but the pizza is only average-to-good (not “world’s best”), and the rusted/dirty utensils plus the strong ocean smell near the water make it a miss for us.

Great place for a lobster pizza and great vibes. A+

Lovely spot to eat on the roof with beautiful views, great food and above all, wonderful service from Marvin who was hardworking and friendly!

It’s a great place to take a break after visiting the Hemingway Museum and the Southernmost Point. After standing in line to take a picture with the sign, you’ll definitely need a sip of a cold mojito. And maybe a snack too :) The biscuits with lobster were just mouthwatering… Crispy biscuits and tender lobster meat were made for each other. Ask for salad as a side, not fries)

Breakfast menu is limited (hope you like burritos) and ends at 10:30.

The caprese sandwich was to DIE for and the truffle fries are incredible. The bartender up top did an amazing job and was so kind. You also can’t beat the view

Duffy was seriously the best!! He was so accommodating and personable. Absolutely made this spot hard to leave! We will be back!!

We were there yesterday, September 21, 2026, and weren't very satisfied. We were looking for a seat by the water, but we weren't allowed to sit there because we only wanted drinks. You're only allowed to sit by the water if you also want to order food. That's one star less already. Then the staff told us it was happy hour on all cocktails. So we decided to have one or two cocktails up on the terrace. We ordered two cocktails, and then they were about to leave. When we got the bill, we were shocked. One cocktail cost $16. When we asked, we were told that these two cocktails weren't included in happy hour. There was no indication anywhere which cocktails were included and which weren't; there was no sign anywhere, and the bartender didn't mention it either. Therefore, another star deducted. We wouldn't go there again for drinks.

Great atmosphere and out side seating There Lobster pizza was perfect with coconut butterfly shrimp.