What budget do I need to start diving and having modest expeditions?
Interested in exploring some places for different reasons, now I know that I will need cost for travel and boat dependend on the place but what I want to know what equipment do I need, general tips or tutorial about how to do things, if there are any health risks, what depth is maximum to go, any potential dangers, what things are illegal/legal to do etc., beacuse I am not gonna pretend I dont know little to nothing about how things work thats why I seek advice. Now lets say I plan on exploring certain parts in the span of multiple days covering large area with cameras. And also, if anyone knows how to detect water life with sonar or something, what equipment is there, or to detect metal, wrecks, terrain, tempwrature, mapping the area, using already avaiable resources please let me know beacuse I will be also needing all that.