Why not get most of those vision and sound enhancements through contacts + (swimming)goggles and earplugs? Saves those valuable points.
You've never been Surfing or did Watersports with Contacts right ?
Its nearly impossible, You're bound to loose them
what about Combat Sense ?
with a Dance in the Water
Medicineman
Yeah, contacts in ocean water are a very bad idea, they're gonna get lost. Even under swimming goggles, because those can pop loose when, say, you go to shoot through a big tube and misjudge being able to ride completely through it and you get covered by it
I think Combat Sense is a later power... more Warrior and less Athlete. (But here I am taking Killing Hands/Elemental Strike, though lol. GMs and their dropping hints.)
So here's what I think I will settle on:
Agility Boost I = 0.25
Improved Gymnastics I = 0.25
Sustenance = 0.25
Killing Hands = 0.5
Elemental Strike (Water) = 0.5
Improved Reflexes I = 1.5
Improved Sense: Flare compensation = 0.25
Improved Sense: Low-light vision = 0.25
Natural Immunity I = 0.25
Thanks for all the input guys

Now on to Attributes and Qualities. I think I am gonna go with:
B: 4 A: 5 R: 4 S: 3 C: 4 I: 4 L: 2 W: 2 Edg: 4 M: 4
+ = Natural Athlete, Water Sprite, Martial Arts I, Adept
- = Thrill Seeker, Prejudiced (Japanese, Outspoken), Lost Loved One, Day Job (1000, 10 hrs.)
Concept fleshed out a little further, using the Qualities: Filipino, whose folks were part of the JIS resistance. Father killed, mother disappeared. Moved to Seattle recently to find her on the rumor she'd been taken there to be used as a sex slave in a Yak bunraku parlor. Day job = pizza delivery, for a friend who helped the adept get to the UCAS (Inspiration Snow Crash, heh). Part of the equipment list is gonna have a used GMC Bulldog, but that's a little later

That's 250 BP right there, on to skills in a few. Thoughts so far?