Hey some plants are similar to this fruit pitahaya produced by a
Cactus plants very nice photos.
By the way the pumpkin flowers are very delicious too but you showed
A wild beautiful flowers. Nice photography, the place looks very good.
here are some fruit similar to your pictures, please look only the pictures :)

https://steemit.com/food/@galberto/pitahaya-entre-mas-silvestre-mejor