I used Google maps to find Holyrood Palace. Holyrood Park is right by it. By then, following the skyline toward the goal is pretty straightforward. When in doubt about direction, I just followed the stream of people.
15 degrees Celsius was forecast (59 degrees Fahrenheit), sunny; 1:53PM-3:55PM
I did not look for, nor see, public toilets.
There were a few dogs in Holyrood Park and on the trail to the summit.
I walked approximately 1.6 miles to the summit and then 1.9 miles on the trail back.
The trail is paved at the very beginning, then the trail changed to stone and was very challenging. I went counter clockwise and did a loop. The grassy path on the way down was much easier walking until I missed spotting one of the mole holes; I fell and hurt my hip. Then I just hobbled for the rest of my return to my hotel. There were many people on the trail. Unlike at Catbells in the Lake District, the people at the summit did not take turns taking photos. The same people were at the marker the entire time I was at the top.
Parking: There was a paved parking lot between the park and the hike. It appeared to be "pay to park", but I did not look at it because I did not travel by car.
I saw very little trash.
I was not troubled with mosquitos or midges.
This trail would not be good for strollers. I saw some people take the lower level with bikes and then left the bikes in the weeds on the side of the trail when the "steps" began.
I saw a variety of wildflowers (including burdock, ragwort, foxglove, yarrow, and harebells), berry briars, ferns, mosses, butterflies, and trees.
For more information: https://www.visitscotland.com/info/see-do/holyrood-park-and-arthurs-seat-p914341
Nearby:
The Conan Doyle, 71-73 York Place, Edinburgh, Scotland EH1 3JD
Very nice gins, Guinness, haggis with neeps & tatties, and sticky toffee pudding. (It was my last night before going home so I had to have the haggis!)
Holyrood Palace AKA Palace of Holyroodhouse, Canongate, Edinburgh, Scotland
https://www.rct.uk/visit/palace-of-holyroodhouse
I enjoyed the audio tour.
The Queen's Gallery is next to Holyrood Palace and Holyrood Park. It is across the road from the Scottish Parliament building. @ Edinburgh, Scotland
Scottish Parliament Building @ Edinburgh, Scotland
At Holyrood Park, looking back at the parliament building @ Edinburgh, Scotland
Sign near the edge of Holyrood Park @ Edinburgh, Scotland
At Holyrood Park. The path begins at the top left of this picture. That ridge? That is not the summit of Arthur's Seat. @ Edinburgh, Scotland
The beginning of the walk to Arthur's Seat. Doesn't look so bad, right? @ Edinburgh, Scotland
Ice cream truck at the bottom. It seems like every hill has an ice cream truck at the bottom. @ Edinburgh, Scotland
I went on the left path. I am guessing that right path leads to that cliff I saw from Holyrood Park. @ Edinburgh, Scotland
Left or right would have worked. The crowd was going right. I do not usually just go with the crowd, but since I was in an unfamiliar space I thought that would be a good plan. Turns out, that was the steeper trail choice. @ Edinburgh, Scotland
Those are the ruins of St. Anthony's Chapel. I visited them on the way back down. @ Edinburgh, Scotland
View as I ascended Arthur's Seat @ Edinburgh, Scotland
The yellow flower is ragwort. @ Arthur's Seat, Edinburgh, Scotland
View as I was ascending @ Arthur's Seat, Edinburgh, Scotland
Ascending @ Arthur's Seat, Edinburgh, Scotland
Rocky trail @ Arthur's Seat, Edinburgh, Scotland
Looking back @ Arthur's Seat, Edinburgh, Scotland
Yellow flower @ Arthur's Seat, Edinburgh, Scotland
Burdock @ Arthur's Seat, Edinburgh, Scotland
Heading up.
See that mowed trail on the left? That is the way I came down. It would have been a more gradual way to approach the summit. The person at the far left is about where I was when the gopher hole "caught" me on the way back down. @ Arthur's Seat, Edinburgh, Scotland
Blackberry briars @ Arthur's Seat, Edinburgh, Scotland
Looking out toward the North Sea @ Arthur's Seat, Edinburgh, Scotland
On the way up @ Arthur's Seat, Edinburgh, Scotland
I believe that is St. Margaret's Loch @ Arthur's Seat, Edinburgh, Scotland
Bird @ Arthur's Seat, Edinburgh, Scotland
View @ Arthur's Seat, Edinburgh, Scotland
View @ Arthur's Seat, Edinburgh, Scotland
View @ Arthur's Seat, Edinburgh, Scotland
View @ Arthur's Seat, Edinburgh, Scotland
Harebells? So pretty. @ Arthur's Seat, Edinburgh, Scotland
These locks were fairly close to the last scramble to the summit. @ Arthur's Seat, Edinburgh, Scotland
View @ Arthur's Seat, Edinburgh, Scotland
Looking up toward the summit @ Arthur's Seat, Edinburgh, Scotland
View @ Arthur's Seat, Edinburgh, Scotland
The last scrabble before the summit. @ Arthur's Seat, Edinburgh, Scotland
Pillar @ Arthur's Seat, Edinburgh, Scotland
This was at the top of the pillar shown in the pic to the left. @ Arthur's Seat, Edinburgh, Scotland
View from the summit @ Arthur's Seat, Edinburgh, Scotland
Birds at the summit @ Arthur's Seat, Edinburgh, Scotland
The people at the top were not taking turns at the summit marker the way they did when I was at Catbells in Cumbria, UK, so I took this pic. @ Arthur's Seat, Edinburgh, Scotland
View from the summit @ Arthur's Seat, Edinburgh, Scotland
View from the summit @ Arthur's Seat, Edinburgh, Scotland
@ Arthur's Seat, Edinburgh, Scotland
The summit viewed from the grassy path as I descended @ Arthur's Seat, Edinburgh, Scotland
View of summit as I descended using the grassy path @ Arthur's Seat, Edinburgh, Scotland
Sign for nesting bird safety @ Arthur's Seat, Edinburgh, Scotland
Foxglove @ Arthur's Seat, Edinburgh, Scotland
Flowers @ Arthur's Seat, Edinburgh, Scotland
Ruins of St. Anthony's Chapel @ Arthur's Seat, Edinburgh, Scotland
St. Anthony's Chapel Information Board @ Arthur's Seat, Edinburgh, Scotland
Ragwort and butterfly @ St. Anthony's Chapel & Arthur's Seat, Edinburgh, Scotland
St. Anthony's Chapel, @ Arthur's Seat, Edinburgh, Scotland
St. Anthony's Chapel @ Arthur's Seat, Edinburgh, Scotland
Yarrow @ Arthur's Seat, Edinburgh, Scotland
View of Edinburgh from St. Anthony's Chapel, Edinburgh, Scotland
Berries not yet ripe @ Arthur's Seat, Edinburgh, Scotland
View of Calton Hill in the distance @ Arthur's Seat, Edinburgh, Scotland
St. Margaret's Well @ Arthur's Seat, Edinburgh, Scotland
@ Arthur's Seat, Edinburgh, Scotland
@ Arthur's Seat, Edinburgh, Scotland
Gates of Holyrood Palace. Visitor's Entrance is around to the left. @ Edinburgh, Scotland
Gates of Holyrood Palace. Visitor's Entrance is around to the left. @ Edinburgh, Scotland
@ Edinburgh, Scotland
Visitor entrance to Holyrood Palace @ Edinburgh, Scotland
The Conan Doyle @ Edinburgh, Scotland