I was very lucky to join my teacher on a retreat he organises every year on São Miguel Island in the Açores the Portuguese islands lying in the middle of the Atlantic ocean.
We started every day with a silent walk at 7am, an outdoor meditation, a yoga session followed by breakfast. We spent the other days swimming in the sea, a boat trip with whales and dolphins, hiking, swimming in the iron baths, and much more. I highly recommend visiting São Miguel Island.
The yoga retreat was in the Sivananda tradition, so we could close each day with chanting, then a reading about the life of Swami Sivananda with other short prayers and offerings to the puja.