Is this a reference to something?
No. It's a traditional kind of bridge that is made of just bamboo bars like this:
That particular one wouldn't be on an island in the Mekong near Ben Tre?
He is a staff, perhaps
"Cầu khỉ" nó là một trong những cây cầu phải can đảm hoặc đi quen mới có thể vượt qua nó.
~ The "monkey bridge" mostly in South Vietnam, it is one of the bridges that must be courageous or familiar to be able to cross it.
OMG Cầu khỉ