>>298146092
You'll have to wait until the person who made the map opens the instance, it's not public.
There's two 4th of july maps from people here that are public:
https://vrchat.com/home/launch?worldId=wrld_c69bade4-f2de-4da1-892a-b499b8798190
https://vrchat.com/home/launch?worldId=wrld_ddb491aa-661a-4e53-b9fd-b0fde113be69