There are absolutely no umbrellas at the pool. If you want total shade you have to pay for it by getting a cabana which costs $600 to $1,000. Anyway, if you want shade for free, get there early. There are a few spots near some olive trees that will provide you with shade all day. Another option is to hang out in the pool under the monument.
Other than the shortage of shade, I had a great time and loved this pool! It's beautiful, the vibe is relaxed, and the drink servers are prompt and attentive.