If you’re into walking, JBR is a great area, even though the two properties there are a bit older. I’d recommend checking out the Hilton The Palm. Summer rates are around 500 AED (Tax included). They often drop prices a lot closer to your stay date (a month or two before), so go for a refundable rate just in case.
Just a heads-up: it’s insanely hot there. I wouldn’t recommend walking around in the afternoon. I’ve seen residents pass out from the heat!