There's no way to view this in-game as it has been deleted, and probably will not be added back into the game in the near future, as it has been removed from the game either partially or entirely.
Grassy Bay was located in one of the new map's corners, near Tom's Shack. With the new map update, this area replaced Quiet Lake on the old map.
Grassy Bay was next to Tom's Shack and a few blocks away from the Bulldozer, and covered little ground, with trees, stones, and mud piles surrounding it. Near the lake, there was a rock, in which the NPCBob was leaning on it while fishing in the lake.
From a farther distance, you can see that there are four paper boats that are black on the coast of the New Map. There are also four boats that will pass by the lake.
Added on v2.0.1, which added a new map for the game.
There's an Item spawner near this place. More specifically, near Bob.
There was an invisible barrier that prevented players from jumping on the water.
Near the Lake, there is a sign that says: "I suggest distance", as before an invisible border was added between the lake and the ground, the player could fall out of the world and die.
Before the "I suggest distance" sign, there was another one, saying "Your own fault for falling"
Their was a walkie talkie near Bob that once played static, now as of May 25, 2020 it changed into creepy music.
The four boats became a concept used in the later maps to come.
Another Made In Heaven user standing on the plumber.
A view of the Grassy Bay.
The 4 Paper Boats.
A Made In Heaven standing menacingly on the paper boat.
The old sign on the side of Bob.
The updated sign behind Bob.
Grassy Bay in the Easter Event. (2020)
A picture of a radio that suddenly appeared in the Grassy Bay.