Re: Waterproofs for the tropics?!
On dive trips, I always take along a hooded nylon windbreaker that I've waterproofed with a Scotchguard treatment. Folded it takes up almost no space in my drybag, and it's inexpensive enough that if I damage it or lose it I haven't lost very much.
Or you could carry an umbrella.....
Jesus said, "Go fishing!" (Luke 5:4). He said nothing about monthly reports, budgets, cost variances, manpower planning, or orders forecasts.