I'll second Bulgari Aqua
. It has a nice spiciness and classic perfume style, combined with a very oceanic, briny aquatic aspect. One of my faves, though I have fallen out of aquatics lately.
Someday, when you have a lot of money, remember this one - Sel de VÃ©tiver
by The Different Company. The price is ridiculous for a student, but this is, hands down, one of the most beautiful "briny/salty aquatic" fragrances out there. The combination of iris and vetiver with the briny aspect, gives me the image of dining in a seaside outdoor cafe with a beautiful woman wearing designer clothes and expensive perfume. Chandler Burr considers it one of the greatest fragrances ever - so much so that he got in a wee bit of trouble for giving away samples while still wearing his journalist hat at the New York Times. I once wore it in an elevator at work, and two women complimented each other for the fragrance, thinking the other was wearing it. It was kind of hilarious. The scruffy, bearded UNIX guy in the elevator pretended he didn't know who was wearing it, and simply tried not to move, so nobody would figure it out.
You can get samples of it for not much money, or put it on your "someday" list.L'Eau Par Kenzo
is nice, and the "Indigo" version is a bit spicier - I like that one.
The HermÃ¨s Merveilles
series is an excellent salty series - both the Eau and the Elixir are worth checking out. They're a bit pricey on the designer side, but still reasonable, and available in Sephora.
Best wishes for your hunt!