Book the new-moon window before you book the lodge
The moon phase determines how much sky you see far more than the lodge you pick. Find the new-moon window in June or July that works for your schedule, then check lodge availability. A new moon at Casa Rural Las Llanadas under Bortle 3 shows you more than a full moon at the Parador under Bortle 2. The 5-night window centred on the new moon gives you two or three genuinely dark hours each night.