Does anyone know what fruit this is? At a hotel in South Beach, Miami and no one knows.

I just saw the inside and it's a bright red orange. Not much fruit. I'll try to post a picture of it.

Can you ask someone on the hotel staff from Central or South America? Perhaps they would be more likely to recognize tropical trees and fruit.

Maybe its a mangosteen, they have a very hard shell and soft sweet white fruit on the inside.

Definitely not a pomegranate (we have a pomegranate tree so I know what that would look like). My vote is for guava..

It looks like a guava to me. Do you have a picture or descrption of the inside of the fruit? Guavas are pink or creamy white on the inside and green on the outside. They have hard edible flesh that is very dense and softens as it ripens. Unripe guavas are tart and must be peeled with a knife. Is this sounding right?

It has a pretty hard shell. Not easy to break open.

Looks like chocolate persimmon. Hard to tell from the photo. Does it look like this:

http://www.fairchildgarden.org/Articles/id/562/read/Chocolate-Fruit-for-South-Florida/

The photocis so tiny, but is it a pomegranate?