Depending on when you want to go villas can be very easy or very tough at 7 months. The busiest time of the year for HH is the summer months, followed by Spring Break and Thanksgiving. If you are looking for reservations in January, you should have good availability for any type of villa.
There are only 21 Studios and 1BRs at the resort, so those will always be the most challenging. There are usually 2BRs available at 7 months even for the summer months.
HH has a wide range of activities for everyone. The resort itself has great family and age-related recreational programs for kids and adults alike. Nature walks, shelling, horseback riding, Dolphin watch cruises, crabbing, fishing, kayaking, canoeing, tubing and sailing are all available from or nearby the resort.
There are over 200 restaurants to choose from on the island, day trips to Savannah are an option for many. There are historical sites on HH itself - down at Sea Pines is the ruins of an old plantation and oyster mounds to explore. There are lots of art galleries on the island, the Coastal Discovery Museum has some nice programs available and withing walking distance of the resort is the Arts Center of Coastal Carolina with a number or professional musical and dramatic theater events each year.
Here is a link to local
HH events during the month of July, 2012.
Hopefully, you'll be able to find something of interest while you are visiting Hilton Head.
Enjoy!