So, in Final Fantasy X, I have just beaten Yunalesca (finally) and I can now go anywhere I want to in the Al-Bhed airship. By spamming X I have found the co-ordinates for quite a few places to go alongside the locations already on the list.
First of all I decided to go to Besaid Island and take a look around. When I reached the main village, someone summoned a (dark?) Valefor which wiped out my entire party hitting 9999 every time.
Before I complete the game or move on in the story, is there any place that you think I should visit? Bear in mind that my HP is only around the 3000 mark.