Looks like a fun day, and that drop does look really steep!
When I was there recently everything was closed for the most part, but that's mainly why I went. Thought it would be fun to check it out without the crowds, and it was. I knew Brighton Beach was a Russian neighborhood, but it was still fascinating to hear almost all of the passing conversation amongst the locals out walking taking place in Russian, and on the whole it was busier than I expected.