You don't have to be mad to be a tour leader in Java

But it definitely helps... In action over the years:

You have to be resourceful when someone has removed the bridge:

Or your photospot has been obstructed by a volley ball court (ably assisted by the deputy tour leader):

And keep cool when threatened by the locals:

Sometimes it all gets too much:

Finally it helps to have an alternative job if everything goes pear shape...