What advantage did the geographic position of tenochtitlan offer the Aztecs in the defense of their capital?

Tenochtitlan was situated on an island in Lake Texcoco, making it naturally protected by water, which served as a barrier against potential invaders. The Aztecs were able to control access to the city through causeways connecting it to the mainland, allowing them to regulate entry and defend against attacks. The city's location also provided a strategic advantage as the surrounding lake made it difficult for enemy forces to siege or surround Tenochtitlan effectively.