Complex sentence: Sham Shui Po means "Deep Water Pier" in Cantonese and the water here was deeper than the beach of Cheung Sha Wan to the northwest.
Split into simpler sentences: Sham Shui Po means "Deep Water Pier" in Cantonese. At the time, the water in Sham Shui Po was deeper than the beach of Cheung Sha Wan to the northwest.