Here's what I threw together today, and why.
Wife was complaining that the original "ladder" that came with the pool was too narrow and didn't feel sturdy. I agreed. She's right.
So since I had the time and $$ in the same place at the same time (believe me, that is actually a rare event!), I built this today:
Daughter got up on it before I had steps or ladder attached, and was dancing around on it. Very sturdy, she says.
The half of the original ladder is only temporary, as is the decking, for the next rare event of time and $$.
Decking will be replaced with normal PT wood, when I build the next section.
Plan is to build a set of steps that are on a hinge arrangement out of composite lumber with stainless fasteners, so it can be removed from the pool when I close it for the winter.
The deck itself will grow, slowly, to encompass about 1/3 of the pool. It will be build in sections so I can remove them when needed.
Rails will be made along with the next section.
None will be permanently set in concrete, as we are planning to eventually upsize to maybe an 18'. I doubt we would be able to go any larger than that, too small a yard.