Every visitor to Horta must take a walk through the marina and down the promenade. If you stay at the Poussada this is likely to be your morning, afternoon or evening stroll since this "hotel" is right on the promenade (although it is quite private and probably quiet inside - I didn't stay there but took a look inside for future reference). The offices of the companies doing whale watching, diving, etc. are all located 2 minutes from the Poussada and should be consulted for times, prices, etc.