Start with your evenings
Choose a Central Coast base by thinking about where you'll spend the evenings, not only which attractions you'll visit. Biriwa may appeal if you want your accommodation and the coast to shape the stay. A city base may suit you better if you want several meal choices within your immediate routine.
Neither option automatically saves money. Compare rooms, meals and the transport you'll need on each day.
Map the repeated journeys
Put your planned stops on a map before reserving a room. A single transfer can be manageable; repeating it each morning and evening may change the feel of the trip. If most of your appointments are in Cape Coast, include those return journeys in the comparison.
For a stay built around rest with one heritage excursion, you can accept a different balance. The best base is the one that reduces friction for your particular plan.
Ask three practical questions
Confirm where you'll eat on arrival, how you'll reach your first tour and what happens to luggage after checkout. These details matter more than an extra facility you may never use.
The Biriwa Beach listing can help you compare locations. Check the precise accommodation address separately and ask for a realistic transfer quote. Keep the last day free from a tightly timed attraction if you also have a long onward journey. A coastal base should make the trip feel easier, rather than create a commute you hadn't budgeted for.