I won an inshore charter with a local guide what would be the appropriate tip I don't plan on keeping fish to clean but I want to compensate him for his time fuel and whatever else is involved with his donation
I would definitely tip at least 20% if he is accommodating and friendly. I haven't had any bad experiences yet and that's what I usually tip especially if they clean the fish. Since it's free to you, even with a big tip, you're still saving money. I would actually consider tipping half of what the trip would cost.
Congrats on the win and hope you have a great time!