Hello everyone, it has been years that I have this on my mind and maybe now someone can help me figure it out.
I keep on remembering snaps of a cartoon or anime from my childhood and I can't just figure out what it was.
This could have been a movie or a series (most likely) and what I remember of it is as follows:
A group of people on a boat sailing, as if they are looking for something, they came across an island, the island was beautiful, it has a villa/castle (more or less modern looking) surrounded by greenery, it was a small island, castle and the surrounding gardens and trees make up most of it.
This group of people docked on this island and descended to investigate what was going on, they walk around, people are divided into groups, to cover more ground. (them being divided to groups is not something I am 100% sure about)
One of the group who entered the villa, found a room which rat cages, with live rats inside of them (maybe a lab not sure), and suddenly some kind of a liquid started to squirt from the floor and under the cages, which was seem to be acid that melted everything, it is when this group ran back to the ship and
(this part is uncertain)
I think that the island melted due to this acid and sank in the sea
I spent years trying to find it or figure out what I was watching, it haunted me for so long and I couldn't just let it go, I am not sure of the date but I can guess maybe around late 1990s early 2000s?!
Can you remember when you might have seen it, or what year it could have been from, and was it 2D animation/anime?
I would say late 1990s, Maybe 1997ish, but the cartoon itself may be older, quality of it is very much like the animation used in Digimon 1999. Colors were bright and happy, nothing dark or gloomy, thats why it stuck with me, being this bright colorful cartoon with such a dark weird creepy storyline.