Choose a place small enough to cross on foot and large enough to have one excellent bakery. That is almost all the planning required.
Saturday: follow the weather
If the morning is clear, walk the headland before the day warms up. If it rains, begin in the market and let lunch become the main event. The coast rewards flexibility more than ambition.
Sunday: one long view
Find a route above the shore, carry something simple to eat and turn around before you need to rush. Leave time for wet shoes, delayed buses and one final coffee.
The sea makes even an ordinary weekend feel properly elsewhere.