From the Car Park - very doubtful. It would require exceptional sea conditions. The Wales is maybe 80/90 yards over even ground. No rocks or clambering required. Enjoy your visit.

It’s not a difficult trail, however, it is rocky with a couple of big steps, depending on your route down. Take your time going down and you will be fine. It is muddy and slippery if raining.

Download the "Tides Near Me" app and go during high tide, whenever that may be.

Yes, very easy.

Yes. You can walk a short distance from your car and see the blowhole. Regardless put your toddler in closed toe shoes so he/she doesn't hurt his/her feet on the lava rock.

The hike is a fairly strenuous one, especially with unstable rocks and steep bits of hillside. You can get a decent view from up top without having to hike down, so I would recommend going that route if you have bad knees, hips, or ankles. If you decide to go down, I highly recommend having real shoes on (not flip flops and especially not barefoot).

There is a spot up above the blowhole where there are several local stands selling jewelry, food, and some other things. They aren't there all the time but they have been there the two times I've visited the blowhole. The shop stands are located right next to the road so if they're open on that day, you can't miss them!