The island's coconuts are not as safe as they seem. Our team of expert researchers (okay, it was just Bob) have confirmed that the coconuts are actually sentient and will slowly drive you mad with their incessant, pulsing, orange glow.
Our team of expert researchers (okay, it was just Bob) have confirmed that the only way off the island is through a series of increasingly complex puzzles. Don't worry, we're sure you'll figure it out. Or maybe just wander around until you get lost in the jungle and forget what you're doing. That's a good plan too.