Complex sentence: The basilica of Candelaria, main Marian shrine in the Canary Islands, was built later (1789, over the remains of a small church that had burned down), a few hundred meters away from the cave.
Split into simpler sentences: The basilica of Candelaria, the primary Marian shrine of the Canary Islands, was built later in 1789. It sits over the remains of a small church that had burned down a few hundred meters away from the cave.