We visited the Longan Farm during our day trip in Tg Sepat. Although longans is the main fruit here, but bittergourd, fresh from the tree can also be found here. In fact, this is a small hut where visitors are able to buy other local products such as sweet potatoes, rambutan and etc.
Luck was not with us during our visit. The owner told us to come back next month as the fruit will then be ripe enough for consumption.