Route comes first
A South Florida departure to a nearby Bahamas destination is a different mission from continuing through multiple island groups. Define the cruising plan before treating range as a purchase requirement.
Published range needs context
Range figures depend on speed, load, sea state and test assumptions. Confirm how a published figure was derived before relying on it for a buying decision.
Reserve matters
Prudent passage planning includes margin for changing conditions, diversion and operational uncertainty rather than planning to arrive at the limit of usable fuel.
Speed changes consumption
Many yachts consume fuel very differently at displacement, economical cruise and higher planing speeds. The speed you expect to travel can materially change effective range.
Range is only one Bahamas-fit variable
Draft, seaworthiness, storage, tender strategy, accommodations and owner-operation preferences can matter alongside fuel range.

