Treasure Cove is one of my favorite video games. The version I played was released in 1992 by The Learning Company. The artwork and music entertained me for hours as a kid, and I still enjoy booting it up now and then today!
I'm working on copying sprites from the game to share around since I find them extremely endearing. I'll put ones I've gathered here.
You can play Treasure Cove for free in your browser here, or download the files and boot it up in DOSBox!