The short answer
Base on Faial if you want a harbour town within walking distance of dinner and the widest choice of boats on the destination. Base on Pico if you want the lava-walled vineyards, the mountain behind the house and, from Lajes, the shortest run to the sperm whales.
Doing both is a third real answer rather than a compromise, because the ferry between Horta and Madalena crosses in about 30 minutes.
How far apart the two islands actually are
Closer than almost anyone expects. Pico and Faial face each other across the Faial Channel, roughly 8 km of water, with Horta and Madalena as the harbour towns and Lajes do Pico, on the south coast, as the third departure town.
The ferry makes that geography usable: about 30 minutes across, up to around ten sailings a day in season, a first around 07:30 and a last around 22:00, and foot-passenger fares from about EUR 7 one way.
Driving is the slower half, and these are map estimates rather than ground truth: Madalena to Lajes do Pico about 40 minutes, Horta to the Caldeira viewpoint about 25 minutes, Horta to Capelinhos about 30 minutes, a Faial loop a half day and a full Pico loop a half to full day. Faial gathers around one town. Pico does not.
A week based in Horta
Horta is a legendary transatlantic yacht stopover, its landmarks the painted quay murals left by crossing crews and the century-old sailors bar, which also tells you the channel is navigable but exposed. You can walk to dinner, which on an island week matters.
It is also where the boats are. Horta Marina and Cais de Santa Cruz carry the densest cluster of licensed boat businesses on the destination, covering whale watching, sailing, diving and coastal trips, and the charter supply here is small but specific: bareboat and skippered yachts, day sails, sunset trips. If the week wants variety on the water rather than one anchor day, this is the shore: a private boat day out of Horta is easy to arrange. The hull matters too. Whale watching here mostly runs from rigid inflatables, and the steadier catamaran-style boats are a Horta option, which settles the morning for anyone uneasy in swell.
Arriving is quick. Horta airport sits at Castelo Branco, roughly 10 km southwest of town, so the first evening starts at the house. The canonical land day is the Caldeira crater plus the Capelinhos volcano and its buried lighthouse, run locally as a half-day jeep tour or an electric van tour, and the hydrangea lanes that give Faial its blue-island name peak roughly June to August.
A week based on Pico
Pico is two different weeks, depending on which end of it you sleep at. Madalena puts you inside the vineyards, where the dry-stone enclosures, the currais, are described across every local itinerary as a UNESCO World Heritage landscape. Three wine addresses on the island are open to visitors: the cooperative at Madalena, founded in 1949 and the largest producer in the Azores, a producer at Bandeiras near Madalena, and a small adega at Santo António in São Roque do Pico, so two of the three sit on this side of the island. Pico airport is at Bandeiras too, about 8 km from Madalena, and a tasting day among the currais is the obvious anchor.
If the mountain is on the list, that points at this end too: Madalena to Casa da Montanha, the trailhead, is about 17 km and roughly 25 minutes by road. The climb is not something we sell; it is arranged as part of the stay, through a company registered to run it, whose guide is a recognised Mount Pico guide.
Lajes, on the south coast, is here for one reason: the whale grounds are closest to it. Pico-side whale watching is worked by long-established local businesses, one trading at Lajes since 1989, another family-run there since 1996, and two at Madalena, one since 1993 under a maritime-tourism licence. What Pico costs you is the walkable evening and the choice of boats, plus the drive between the two ends if the house sits at the wrong one.
Whales: where the base really does change the day
Departures run from three bases: Madalena marina and the Lajes do Pico nautical centre on Pico, and Horta Marina or Cais de Santa Cruz on Faial. Choosing between them is not a matter of taste. Lajes sits roughly 10 minutes by boat from the prime sperm-whale grounds against roughly 30 minutes from Madalena or Horta, which is the honest reason a Lajes departure tends to mean more time alongside animals and less in transit.
Past that, the base moves the commute rather than the product. Whale watching from Pico and from Horta cover the same water in the same season, under the conduct rules that bind every licensed boat here on distance, boat numbers and observation time. The month decides which animals are likely rather than which shore you should sleep on.
When two houses beat one
Two bases work here in a way they do not in most places we cover: the crossing is short and frequent rather than a day lost. A few nights in the town while the boat days are live, then the rest among the vineyards, is a different holiday from either half alone. It costs a morning and a car to sort out on both sides. If one side dominates the week, stay put and let the ferry do the day trips instead.
What the houses are like, and how the shortlist is found
On Pico the best houses are lava-stone, low and thick-walled, often old adegas rebuilt as homes in the vineyard enclosures. Around Horta they run to town houses with harbour views and newer coastal properties west of the marina. Nothing is large by mainland standards, so a big group usually means two houses, and we would rather say so early than in August.
We do not list or display houses on this site. Tell us the dates, the group and the shore you are leaning towards, and we come back with a shortlist genuinely free on those nights, from the trusted local agencies and owners we work with here, with their terms in writing before anything is committed. Island by island, that is luxury villas on Pico and Faial. The week is then arranged around the house: the whale morning at the hour the boat leaves, the tastings, a Faial island day or a Pico island day with a licensed local driver, a private chef for the evenings nobody wants to drive.
One honesty note. This is the open North Atlantic: sea state rather than rain stops boats, swell and wind cancellations are routine even in summer, and the calmest windows fall between May and October. Neither island fixes that, so a spare day mid-week does more for you than the choice between them. Airport transfers come last. More on both islands is on Pico and Faial.