The current pristine state of Belize’s Sarstoon-Temash National Park’s unique wetlands and mangrove complex owes much to its remoteness, difficult access, and hostile habitat; the discovery of oil there is changing that. A team of scientists collects ecological data which might help guide the Park’s management. — The skiff drifts quietly toward the riverside, the outboard still. A young man standing in the bow gently parts the branches overhanging the water till the boat touches the bank. He ties the bow line securely to a tree, then pulls the boat parallel to the shore.