The Earth park simulation was a holodeck program designed by Lieutenant Paris and Neelix in 2372.

While traveling the Delta quadrant, Neelix and Paris designed this program as means of recreation for the crew of the USS Voyager. The program contained a pound for fishing, a baseball field. They also incorporated Molly, a feature that really pleased Captain Janeway.

In 2372 the senior staff of Voyager played a baseball game against the Stellar cartography department using this program.

The Doctor would also use this program to go fishing. (VOY comic: "The Storm")