Dreaming that you are snorkeling, can be interpreted as symbolism of personality exploration. Snorkeling indicates your desire to understand the source of your emotions. You are exploring your feelings and by this exploration you are trying to understand why do you feel such emotions about certain things. Alternatively, snorkeling in the dream denotes your past experiences. Maybe you should look back at past feelings to understand better your current mental state. See what you can learn from those experiences.
Dream dictionary: snor dream meanings
…Snoring in his dream means getting hold of one’s enemy or exposing him, or it could mean enjoying peace and comfort, or dispelling one’s fear. Seeing someone else snoring in a dream means that he is a heedless person….
…If you were snorkeling in a dream, then it means that you are trying to figure out of who you are. The dream also shows the understanding of yourself you have. The dream might also represent the past, where the one remembers the things he has learned through that particular period of time….
…in which I found myself, was at least three times the size of any I had hitherto seen. It was already full of white-faced people, who, sitting and lying among innumerable boxes in, apparently, the most uncomfortable postures, were fast asleep and snoring snoring to the most fantastic and taking of tunes I have ever heard. My not having a ticket greatly perturbed me. I expected every moment the collector would put in an appearance and make a scene, and, sure enough, in accordance with my forebodings, in he came, accompanied by the guard, engine-driver; foreman, and half-a-dozen other officials, who, rushing on me with livid faces and flashing eyes; were about to annihilate me altogether when a tremendous hubbub on the line attracted the attention of one and all, and a most extraordinary spectacle presented itself to our gaze. Exactly opposite our compartment was a monstrous green engine…