The Trophy Garden feels like a free version of the Great Marsh. In Pokémon radiant diamond and luminous pearl, the Trophy Garden is a separate area in the game where certain Pokémon can appear. It is like a closed area, in the swarm Pokemon can penetrate so that coach Pokemon can get that you might not get. To unlock the trophy garden.
To unlock the trophy garden in Pokémon Bright diamond and luminous pearl
The trophy garden is already unlocked in the game. If you want to unlock it, you need to go technically only by Astoria City and Route 212. From the side of Astoria City to drive through the 212, a bit bumpy, since a large part of the terrain is muddy. Fortunately, you can use your bike to overcome some of the obstacles that will be presented to you.
As soon as you have reached the northern part of the Route 212, finally leave the swampy area. The mansion is on the right side and is fully accessible. You can go through every room and pick up hidden objects and interact with people, including the owner, Mr. Backlog.
However, since the garden is easily accessible, there are some exclusive Pokemon, which you can get first when you have unlocked the National Pokédex. Fortunately, only the requires you to register all 150 Sinthen-Local Pokemon. You do not have to own what this task makes much easier than it sounds.
Even after unlocking the National DEX, the Pokemon, which you encounter here, will be at a rather low level. If you are at a point in the game where you have unlocked the National DEX, your Party Pokemon is probably at a high level, so you should cover with Quick Balls.
Pokémon Brilliant diamond and luminous pearl are now available exclusively for the Nintendo Switch.