He left the island as a child. He never returned. His early years on the island gave him a life-long love of the sea.
Which is the best way to combine the sentences so the meaning is clear to the reader?
1. He left the island and never returned as a child. His early years there gave him a life-long love of the sea.
2. Though he never returned and left the island as a child, his early years gave him a life-long love of the sea.
3. His early years on the island gave him a life-long love of the sea and he left there as a child, never to return.
4. Though he left the island as a child and never returned, his early years there gave him a life-long love of the sea.