Really unique stay and peaceful. Take the time for the yoga class and Enjoy the nature. I also enjoyed the nearby trip to Ericeira for some delicious bites and ocean view.
Keep in mind when traveling here, it may be difficult to estimate the time. It took us a a couple hours to rent a car and there are a couple stops along the way that might be worth breaking up (cascais and sintra).
All in all though it was great to see this side of Portugal and take some time to relax.