I've been thinking about my vacation this summer. I would like to scuba dive. 
Scuba diving is quite an experience. Are you certified and do you have the necessary scuba skills?
Not yet! Do you know how long it would take to get certified? 
If you're going on vacation soon, it might just be better to do introductory diving. You don't need certification and it's less time-consuming.
Oh wow, thanks for the advice. I wonder if the resort I was looking at will offer introductory sessions. 
They probably do! Introductory diving is probably better, because you'll have a diving instructor guide you around. 
Oh that makes sense. I'm interested in all of the creatures under the sea. 
Scuba diving is definitely a great way to experience that! It's best to avoid touching anything though. Try not to disturbe the marine animals.
Yeah, I'm sure even just exposing the marine life to human is disturbance enough.
Underwater diving
Underwater diving, as a human activity, is the practice of descending below the water's surface to interact with the environment.
Immersion in water and exposure to high ambient pressure have physiological effects that limit the depths and duration possible in ambient pressure diving. Humans are not physiologically and anatomically well adapted to the environmental conditions of diving, and various equipment has been developed to extend the depth and duration of human dives, and allow different types of work to be done.
In ambient pressure diving, the
do not know where I am going or when I will get there.
Even work does not take the pain away. I may be diving for my own pleasure or showing others how to do so, but when I return to the shop, it seems empty without you. I stock and order as I always did, but even now, I sometimes glance over my shoulder without thinking and call for you. As I write this note to you, I wonder when, or if, things like that will ever