Land and settle into Comillas itself, the small walkable town center is your base for the whole weekend, drop bags and get oriented on foot before the day heats up under the overcast sky.

Wander into El Capricho de Gaudí, the whimsical sunflower-tiled villa is one of only three Gaudí buildings outside Catalonia, the gardens alone are worth the unhurried loop as a couple. Popular but worth it, arrive right at opening to beat the day-trip tour groups. Rainy day alternative: the interior tour of the villa itself is fully indoors and just as rewarding.

Walk the grounds of Palace of Sobrellano next door, its Gothic Revival towers and sea views make for a romantic, slow-paced photo stop before the light softens toward evening. Rainy day alternative: take the guided interior tour of the palace's ornate salons.

Dinner at Restaurante Gurea, a highly rated spot for Cantabrian seafood and Basque-influenced plates, book ahead for a Friday table (confirm hours before visiting). If Restaurante Gurea is fully booked or closed, try Restaurante El Carel nearby. Afterward, ease into the night with cocktails at Montañesuca Cocktail House, an intimate spot for a first-night toast in town (confirm hours before visiting).

Head straight for Comillas Beach, the town beach right off the harbor. With temperatures near 24°C and only overcast skies (no rain yet), it's ideal for an early swim or paddle. Arrive before 9am or after 4pm to avoid weekend crowds, this is your water activity anchor for the day. Rainy day alternative: browse the shops and arcades of the town center instead.

Continue the coastal adventure at Parque natural de Oyambre, a short walk-and-explore along protected dunes, marshes, and wild beach coastline just outside town, dramatic and quieter than the main beach. Rainy day alternative: visit the interior of El Capricho de Gaudí if the weather turns.

Catch golden light at Mirador de Santa Lucía, a clifftop viewpoint over the Cantabrian Sea, perfect for a slow, romantic pause with the ocean stretched out below. Rainy day alternative: warm up over coffee in the town center.

Dinner at La Secret, the town's top-rated table, intimate and ideal for a couple's splurge night, reserve in advance (confirm hours before visiting). If La Secret is fully booked or closed, try Restaurante Gurea nearby. Then check for a live event around the Mercadillo de Comillas area or town square, weekend evenings in August often bring open-air music or local fiestas to Comillas' historic center, ask at your hotel what's on.

Rain is likely today (drizzle, 73% chance), so start indoors with the striking neo-Gothic interior of El Capricho de Gaudí, weatherproof and worth a closer look. Follow with brunch at Restaurante El Carel, a well-loved local spot on Calle las Infantas. If Restaurante El Carel is fully booked or closed, try La Secret nearby (confirm hours before visiting).

Duck into the Old Town Hall Comillas square area for a final wander past its arcaded facade, then linger in the historic center for a last misty stroll together if the drizzle eases, its arcaded lanes are romantic even under grey skies.

Plan to leave Comillas by 1:00 PM to allow time for the drive back toward Bilbao Airport (BIO), roughly 2 to 2.5 hours via the A-8 highway with weekend traffic, which hugs the coast with scenic pull-offs near Santillana del Mar worth a quick stop if time allows before your flight home.