Coffee cups are in the room and they gave fresh packages every day.
Not sure about the pool and March. We are June/July visitors and the sun heats it quite well then.
They will leave you as much coffee as you want. You may also consider bringing your own. I always measure beans for the small pot and grind them. I put them in a ziploc. I make enough of these for each day of my trip. I have purchased flat bottomed filters that fit the hotel coffee pots as well. I put all of the little bags of coffee, along with enough filters into a larger ziploc. That way I know I will have my favorite brew and not have to wonder about the coffee supplied in the room. Since this is a bit more messy then the little pods supplied by housekeeping, I like to take the wet filter with the soggy grounds and put it into the ziploc I used to transport the coffee.