Possibilities:
• See whether the host will lend a car, bicycle or other transportation.
• Take Lyft, Uber, cabs or such.
• Stay in the neighborhood and walk everywhere. Some have limited amenities, such as food. Otherwise you might order delivery of groceries or bring them with you.
• Catch occasional rides from neighbors if you’re comfortable with asking. Some hosts might be willing to make intros if their sit is isolated and they get few applicants.
• Get rides from family or friends who live nearby.
• Skip the sit, because no sitter will be a fit for all sits.