Tristan offers trips across the river for 50 gil per person or 100 gil between the Tipa Peninsula and Ironmine Downs or Plains of Fum. It is 500 gil for a player to sail out to sea. Tristan will give characters a discount if they provide him some Kilanda Sulfur from the volcano. He increases the discount if you provide him with a cactus flower from Lynari Desert. After both discounts, he also sells a pass for 50,000 gil to ride the boat free of charge from then on. He also apparently was a soldier in the city, as one of the Lilties close to ferry boat explains.