There is no bridge, you have to save all the Monkeys then they will swing you over.
the boss monkey has it and you need to defeat him to get it
well what you need to do is get 4 monkeys then you need to cross the bridge that the boss monkey broke, defeat the boss monkey get his boomerang and shoot it at the windmill thing on the top of the post in the middle of the bridge.
It's on the map.
beat the boss
a white monkey with a golden mask
after you save all the monkeys, they'll form a chain now jump to them and swing to the other side.make sure you have the boss key.
you have to enter the forest temple located in forest n and you have to collect 4 monkeys but one is with you from the starting so you have to collect 3 more and then you can jump from monkey because the sub boss broke the bridge and then once you have beaten him you get the gale boomerang
You finish off the forest temple mini boss
If its the Baboon Ook, then he is the Mini-Boss in Forest Temple.
Beat a boss and a chest will appear with a bow in it.
as soon as you defeat the Minny Boss in the Forest Temple you get the boomerang
collect all the monkeys then defeat the flower boss