It’s a hefty hike to Templo del Sol, the Temple of the Sun, but it’s not unreasonable if you don’t push it. The walk just looks more intimidating than it actually is.
Indeed, no one in our group who attempted the ascent failed to make it, although we did have several who opted to not even give it a go.
And while the view from below at the beginning of the climb may look impressive, wait until you get the view from the top.
Here’s a look at Islas Pachacamac from the Temple of the Sun: