If you dive close to the bottom, you will find interesting things to look at. Coral reefs, vegetation, rocks, sand, seaweed, mud, and silt make up bottom composition, housing an ecosystem of aquatic life. You need to be aware of the different types of bottom composition and dive accordingly.
If you don’t pay attention, you could possibly end up getting scratched, silting up the water, or getting entangled in or submerged plant life or old fishing lines. Do not touch or knock anything because this can potentially damage sensitive aquatic organisms. Establish neutral buoyancy, and streamline yourself and your equipment.