 Formentera, Ibiza's diminutive neighbour just one hour's ferry-boat ride (or 25 minutes by hydrofoil) to the south, is an island apart in some ways more like a desert island than a satellite or outpost of Ibiza.
Hydrofoil is a faster means of travelling between the two locations, although ferry-boat is significantly more popular.
mnli hypothesis: Hydrofoil is a faster means of travelling between the two locations, although ferry-boat is significantly more popular. premise:  Formentera, Ibiza's diminutive neighbour just one hour's ferry-boat ride (or 25 minutes by hydrofoil) to the south, is an island apart in some ways more like a desert island than a satellite or outpost of Ibiza.