Lake houston access

Hi there. I am new to the area. From out of state and will be buying a home in the summerwood area (will be completed in February) and let me first say, I came out here this weekend to make sure it was a good area and I was not disappointed. The summerwood/atascocita area is nice. I think I will love it here.

But I had a question. I Googled and could not find anything and drove around. I can't seem to find where to access lake houston. I see there are homes that are near me who have a lake view and access but is it open to the public? If so, how do I get to it?

Thanks