For ages 2 and 6, I’d keep the plan simple and build in a nap/quiet break:

Best Saturday plan: Family Beach Fest + sound-side water

Go to Family Beach Fest at Pensacola Beach on Saturday, August 22, then spend your water time on the Quietwater/sound side near the boardwalk rather than committing the little one to Gulf waves. The beach event is being promoted as family-friendly with live music and activities. Pensacola Beach event post

• For the 2-year-old: sand toys, ankle-deep water, stroller-friendly boardwalk breaks, and a change of clothes.
• For the 6-year-old: give them a small “beach scavenger hunt” (find three shell colors, a tiny crab hole, a pelican, etc.)—it buys adults a surprisingly peaceful half hour.
• Best timing: arrive early, do the beach/activity portion before lunch, then leave for nap or indoor downtime. August afternoons are usually the hardest stretch for little kids outdoors.

Best Sunday plan: downtown, short and air-conditioned

Make Historic Pensacola Village / the Children’s Museum area your flexible Sunday option. It works better than a long attraction day because you can keep visits short, stop for a snack, and pivot if either child gets overstimulated. The current Pensacola Beach August roundup specifically includes Historic Pensacola Village tours among family activities. August roundup

What I would skip with this age mix

• A late-night event or a full, hot afternoon at the Gulf.
• A long sit-down dinner after the beach—grab something casual near the boardwalk instead.
• Making both days “big plans.” One main outing per day is plenty for a two-year-old and still feels special to a six-year-old.

If the six-year-old loves princess stories, see whether the listed Disney’s The Little Mermaid activity has a weekend performance—but confirm its venue/time first, since the event listing does not give those details.

👉 Are they comfortable in the water, or should I steer you toward a mostly indoor, air-conditioned weekend plan?