What chart should I get for a Lowrance HDS Gen-2

[FishStretcher]

I have had a Lawrence HDS8 Gen2 for a few years. The last non touchscreen units. (AKA non sunscreen unit ) I don't think it will do CHIRP, but it will do structure scan.

At any rate, it came with no chart, or basically no chart. I fish in Buzzards Bay MA and Gulf of Maine.

What charts should I get? Probably going to West Marine tomorrow on the way back from the south coast.

Thanks! I bet BigShrimpin knows what to get, he seems tech savvy.