Ok, I figure I make an achievement guide and how to best obtain each one.

Bubblemaker: just launch the game

Open Water Diver: unlock starter levels (main quest, complete dive base challenges)

Diving Buddy: join a multiplayer game (either host or join one)

Fry: completed the first mission in the swimming pool

Chasing Narwhals: traveled 1 nautical mile (just swim around till it pops)

20,000 Miles Under the Sea: traveled 20 nautical miles (same as chasing narwhals)

Self Imposed Exile: traveled 50 nautical miles (same as 20,000 miles under the sea)

Like a Pro!: captured 500 photo's (just take 500 pictures)

Like a Go-Pro!: captured 1,000 photo's (same as like a pro)

Fisherman Friend: captured 5,000 photos (just keep snapping pics till it pops up)

Dubloon Collector I: collected 50 dubloons

Dubloon Collector II: collected 200 dubloons

Dubloon collector III: collected 1,000 dubloons

Photo challenge tip: the photo achievement will be easy if you spam taking photos with the camera. But be warn, if you take too many photos in an area you'll start to take blank white or black photos. Also when that happens you can't use the F12 to take a screen cap to do the steam pic upload. To fix this, when it happens just close the session you are in and start a new one.

The traveling achievement will be easiest to do by using the scooter. I'm also experimenting using rubber bands on my Xbox 360 controller and having my diver swim in a large circle in an open area. This way I can leave the game and come back later.

Tip for dubloon collecting: my tip is go and play Lockheed. I have the best of luck finding anywhere between 10-13 dubloons in one session. What I do is I set a goal for 10 coins & oncew obtain I give myself 5mins to find anymore coins before I close the session and start a new one with all the cons responds. Then I repeat the process over again. Also, by hunting the coins you also work on the distances achievments just by looking for the coins.