Diptyque's L'Eau de L'Eau is the only one that caught my attention of the recent L'Eaus ( neither L'Eau, Eau Lente, nor L'Eau Trois are what I'd call refreshing ). L'Eau de L'Eau is basically L'Eau tempered with citrus, which is a good thing, as I find L'Eau to be untempered cinnamon candy otherwise. It's not my favorite Diptyque, but it's wearable.
Diptyque does do fresh quite well, though. Ofresia is my favorite of the fresher ones, a very fresh green floral that does watery green in an interesting way ( it's not aquatic in the least ). Do Son, though less interesting and much more floral, is a pleasant-enough light tuberose suspended in a similar watery shimmer ( I don't get why the reviews talk about it like it's some extreme-tuberose, it's a million miles from Fracas and some distance from even the other mild tuberoses out there - it's tuberose water, if they made such a thing ). Viriglio is a great, fresh, vegetal basil. I saw it at the Diptyque boutique in SF back in November, so it's discontinued but certainly still around.
Maybe I've been praising it too heavily of late, but Dawn Spencer Hurwitz Viridian is my favorite new green scent. It's fresh in a unique way; like witch hazel tonic and violet leaves.
I'm not a huge fan of most aquatic or citrus notes, so most of my fresh favorites lean towards the green side of things.