Neal's on the River in Concan, TX outside of Leakey, TX...affordable cabin rentals, chuck wagon dinners, family time roasting marshmallows/making smores, floating/tubing the Frio River. Very fun family time and family memories.
Gulfstream Condominiums in Corpus Christi, TX- 20 miles from Pt Aransas. Newly remodeled fully furnished condos on the beach (no boardwalk), game room, nice pool, hot tub. Near restaurants, Putt Putt golf, easy to get to Pt Aransas for shopping and eating out, deep sea fishing, dolphin watching, etc.
Lost Maples State Park, Leakey, TX- tent and/or trailer camping, hiking, fishing, near the Frio River for tubing/floating the river
Y.O. Ranch- cabin and/or room rental, pool, hot tub, chuck wagon, African Safari tour
New Braunfels- Schlitterbahn, float the Comal River, Gruene, TX (shopping, Gristmill restaurant), Children's Museum (hands on learning that is very fun for everyone)
Fredericksburg, TX- hike Enchanted Rock State Park, camping, Admiral Nimitz Museum, (sometimes there will be a live action drama with real WW2 weapons....boys love this), great restaurants, Wildseed Farm, Pioneer Museum, near to SA (Fiesta Texas, Sea World, River Walk, Alamo, IMAX theater)
Have fun! Hope some of these ideas might trigger an idea for making your own fun and memories!