You don't need a drone for the best view over Calpe, you just need to climb El Peñón de Ifach. Just, lol! It's not the easiest hike, but it's totally worth it. The entire way up you're spoiled with incredible views over the city and the sea, which is colored in all kinds of different shades of blue.
The tunnel was a fun little surprise, and once we were on top of Ifach, the views were just breathtaking. And here is a warning: please wear solid shoes and not just flip-flops hiking up there – some bits of the hike are pretty slippery. So please be aware.