I'm trying to remember some games that were on the LC IIIs in my school's computer lab in the mid 90s. Here's what I recall:

1.) One involved trying to navigate a boat on the sea to get away from a storm. You were given coordinates, a map, and a log.

2.) One involved trying to identfy various fish in a dark underwater setting, by clicking on them.

3.) One involved trying to identify various types of shells that were dug up. I think this one was part of the same game as the second one, but I'm not 100% sure.