Hello my family will be traveling down to HHI at the end of March Early April for spring break! We were able to secure our reservation this morning. Please let me know all of the must do things we should do on and off resort. Thank you in advance of your suggestions. We will be staying in a 2 bedroom unit if that helps with anything. Any unit number recommendations would be great as well.
There are so many things to do on HHI to include fishing excursions, kayaking/paddleboarding, tours, and restaurants. However, for most who come to HHI, the best idea is not to schedule too many activities. Part of the allure of HHI is the laid back vibe: going to the beach, sitting by the pool and enjoying music, trivia contests, et. al., lounging on your balcony with coffee or other drinks, playing the yard games scattered throughout the resort, riding bikes all over the island. In other words, spending quality time together. I'm not saying you can't do that with other activities, but what surprises people the most who visit HHI is that you can relax and not plan like you do for a trip to WDW. So, many just come to relax and leave feeling refreshed--like a true vacation. That being said, I'd be sure to do a couple of things. First, book a kayak tour through Outside Hilton Head located in Shelter Cove--a 10-minute walk from the resort back over the bridge. They're fun, easy, and a great family (our couples) excursion. Second, Pinckney National Wildlife Refuge located between the two bridges as you drive over to HHI from Bluffton--maybe a 15 minute drive from the resort. It's free and has walking/biking trails and you'll see plenty of wildlife, especially aquatic birds. (If you don't want to drive that far, a closer and smaller option is Jarvis Creek Park--about a 10-minute drive.)
Restaurants? There are so many on the island, and most of them are good to excellent. For my money. . .
Seafood: Fishcamp on Broad Creek, Skull Creek Boathouse, Hudson's, Black Marlin, Ela's on the Water (10-minute walk from the resort).
Italian: OMBRA Cucina, Nunzio's, Michael Anthony's
Other: Hilton Head Social Bakery (5-minute walk), Oddbirds Cafe (Bluffton), Alljoy Donuts (Bluffton), and Farm (Bluffton)
Fresh seafood to cook in your room: Benny Hudson's Seafood (not the restaurant), Barnacle Bill's
As for room selection, there's a great map on Page 1 of this thread that will give you a nice overview of which building sits where. In short, there are 21 guest room buildings on property, with Bldg 11 being at the entrance to the resort (and where you check in--Live Oak Lodge) and Bldg 31 being the farthest out at the other end of the resort. Don't be deceived, though, as it's a small resort and you can walk from 11 to 31 in 7-8 minutes. The main pool--Big Dipper Pool--sits in the back 1/3 of the resort, and it's co-located with the QS (Tide Me Over) and the gift shop (Mercantile). The fishing pier is also located there, as is the recreational activities window where you can sign up for classes, rent bikes, or grab fishing/crabbing gear.
No 2BRs are located in the first two buildings, 11 and 12, so you will be in one of the other 19 guest room buildings.
Marsh view: 14, 15, 18, 22, 24, 27, 29, 31
Pool view: 23, 25 (partially obstructed by the 2-story slide), 26
Closest to pool (keep in mind no bldg is very far away): 20 to 31
Closest to resort entrance: 11 to 18
Due to noise issues, I'd definitely ask for a top floor room. While marsh views are nice, there are no bad views at the resort with the possible exception of a few rooms overlooking the boardwalk off Bldg 12--the top floor rooms in 12 also have views of the main service building's dumpster and recycle bins. (However, those rooms, likewise, do have partial marsh views.) Still, Bldg 12 has no 2BRs so not an issue for you.
Enjoy your trip!