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What are the different types of marine charts?

Sure! Here are four different responses to the question about the types of marine charts:

1. **Nautical Charts**: These are the most common type and are used for navigation. They show things like water depths, hazards, and navigational aids. Basically, if you're out on a boat, this is the chart you’ll need to avoid running aground!

2. **Bathymetric Charts**: These focus specifically on the underwater features of the ocean floor. They give detailed information about depths and the shape of the seabed, which is super useful for things like fishing or underwater exploration.

3. **Thematic Charts**: These charts are all about specific themes, like ocean currents, tides, or marine life. They’re not for navigation but can be really helpful for research or understanding environmental conditions.