Two concerns with a beach at a resort are the size of them and whether you can access the water from them w/o walking/driving nearby.
The resorts with both are the Plaza Resort - some parts of their
beach are fronted by ironshore though, Harbour Village - the nicest resort on the island probably has the
best beach or the Divi Flamingo which has a small beach out front. The problem with the Divi is there's a
fence in front of a large part of their beach so the only water access is in front of some of the resort building - this is an
old photo of it - the one I linked to in this sentence starts on the other side of the jetty.
Eden Beach mentioned above has wood terraces to keep theirs in place and a curb you have to step over to reach the water. From what I recall there was coral almost immediately off their beach prior to their improvements, I doubt that's changed as STINAPA would be very fussy about dredging of any sort. This is their
beach - in the background you can see Wannadive and the dive boat dock.
I'm generalizing a little but most of the rest of the resorts have little.no beach or water access. At Buddy Dive for example there's sand spread on top of the ironshore cliffs but it requires a ladder to get down to the water level as seen here:
http://www.bayadventures.com/wp-content/uploads/2015/01/buddy-resort.jpg - most of those resorts will say "ocean view" or waterfront but not beachfront. Harbour Village is the only one I know where you can walk off the patio of some of the better units directly onto the sand.
The other consideration is in just about all the photos I've linked to the coral rubble/ironshore is the darker area just off the beach. It will shred your feet w/o some sort of surf walker or light dive boot.
All have on-site affiliated shops, Toucan Diving at the Plaza, the Divi has their own shop and Wannadive is at Eden Beach. The two large food stores are in town about 1/4 mile inland from the road that bisects the Divi's entrance - there's other smaller markets up near Eden Beach also. The Plaza is just about 1/2 mi. south of the Divi along the water.
Town Pier a little north of the Divi is the cruise pier also. I believe they warn you not to dive in that direction since modern cruise ships sometimes hold position with thrusters - 20' or so pods with propellers hanging down with no guards. Not a lot of ships call there but some do. Google it to find a schedule.
Kralendijk is a pretty little town, You can walk to many of the better restaurants from the Divi, it's a little far from the Plaza and the other two resorts are too far north IMO although I know people that do. There';s sort of a "resort tow" north of town, several condo complexes, Habitat, Buddy Dive, Den Laman Condos, Cocoa Beach Club then Eden Beach and Harbor Village b4 there's the marina, a small neighborhood then the north part of downtown.
Coco Beach Club would be a short walk from Den Laman or Eden Beach - it's possibly the best beach there now since they made it. Bari Reef on the north end (in front of Den Laman) is arguably one of the better shore dives there. Dive Friends has a shop there and shares a tiny beach with Sand Dollar Condos also. One nice thing for the divers is DF has the most locations by far on on Boaire - 2-3 north of town, 2 in town and one south of the airport.
I know of condo/villa rentals
waterfront both north and south of town - some with their own pool. I know
none that are beachfront except maybe there's a couple in Belnem where some sand has washed up. Much of that area though is ironshore cliffs right to the water - often with ladder/stairs access only. Even Bachelor's Beach has stairs down - depending on the tide you either step onto a small strip of beach or into the water.
No ziplines, I can't think of anywhere tall enough except the radio towers or windmill farm...lol.
