Cliffs so vertical that the bottom overhangs.

 We were sorry to leave this glorious spit of sun bleached rocks below the lighthouse at Ailsa Craig.

 The tourists that arrived aboard MFV Glorious soon got bored and she set off again.

As we rounded the north end of Ailsa Craig, we saw the 500 ton STS Stavros Niarchos, a British sail training brig. She carries up to 18 sails on two masts. She was launched in Devon in 2001.

We passed the elevated railway and pipeline that carried granite from the blue one granite quarry and compressed air to the foghorn.

 As we turned the north end, we found ourselves under the dark vertiginous walls of Bare Stack.

 It is so vertical that the bottom overhangs.

This huge cave at the base of the cliffs is called Swine Cave. It is very difficult to get the whole rock face in a photo and to appreciate...

...the huge scale of these granite cliffs. The tiny blip on the shore at the horizon is Ashydoo Kirk, a group of fallen rocks as big as a house.

Gas powered foghorns and a racket on Ailsa Craig.

 It was a relief when Donald wanted to photograph from the summit of Ailsa Craig. I had hurt both knees on the way up and wanted to rest before starting the gruelling, knee jarring descent.

I enjoyed the view over the Firth of Clyde to Pladda with its lighthouse, Arran and Holy Island before we started...

 ...our descent. We followed the same route as the ascent but from above, what had appeared as a pile of stones on the ascent was actually the remains of the summer shieling.

Gradually I descended to sea level. Thank goodness for walking poles. Coming down is always harder on the knees than going up.

 We got a bird's eye view of the old gas works. The coal gas was used to run an engine that compressed the air to drive...

...two giant foghorns that are situated at the north and south of the island.

Then a great noise, worse than any foghorn, disturbed the calm, spring afternoon. It was the MFV Glorious with 12 very loud passengers. Usually Glorious carries birdwatchers, hill walkers and quiet outdoors folk but not on this sunny day...

Once they had landed, the peace was shattered. I hoped the nest and egg (we had carefully avoided) were not trampled underfoot. It was time to leave.

A saltire of colour on the slopes of Ailsa.

The upper slopes of Ailsa Craig were covered with a profusion of bluebells and sea campion.

The dazzling display of blue and white matched the colours of the Saltire, the Scottish flag.

Continuing upwards we came to the source of the castle well. Traditionally, it is called the Garry Loch (though the OS map calls it Garra Loch). It had nearly dried out and was surrounded by a profusion of marsh marigold flowers.

Above the Garry Loch we came to a bluebell covered slope that I found one of the toughest on the ascent. The bluebells hid a maze of rabbit burrows, many of which had collapsed. My walking poles not only provided stability they were excellent probes.

As we perspired our way upwards we emerged onto the upper slopes which were covered with short grass. There were many rabbits which hopped away as we approached. My brother Donald and I had started our mountaineering days together in the 1970's so I was very pleased to accompany him on this return to a small hill after a break of 8 years.

As we ascended the sea fog began to lift revealing a clear view of the south end of Arran and its mountains beyond.                 

 Then at last, the trig point on the summit! I literally clutched it for support and...

...caught my breath enjoying the view of our landing spit some 340m below.

I felt elated at being on the summit.  Although I might not look too happy in the photo, that was because my right knee was by now rather sore. Donald's photo shows me standing with my weight over my "good" leg. I really must try to  improve my posture.

Now we just had to get back down!

Bluebells, NSAIDs and guano on Ailsa Craig.

I had brought two walking poles and I was determined to get up to Ailsa Craig castle which is about a third of the way to the summit. After a steep climb the final approach was through this field of bluebells.

The lighthouse and the spit we landed on gradually receded as we gained height (somewhat painfully in my case).

 The temporary spit is a remarkable and beautiful feature of this side of Ailsa Craig.

On reaching the castle I took another couple of NSAIDs for the pain in my bad knees and decided to try and make the summit. I had to give up hillwalking in 2004 but I had spent 5 days a week in the gym during the last winter and was determined not to let all that effort (and the pain of knee surgery) go to waste. Donald gave me a punt up the steeper bits and my shoulders heaved on the poles and took the strain off my quadriceps. Eventually...

 ...we arrived at the well, which...

...supplied water and guano to the castle. The inhabitants might have needed a rather different type of medication than NSAIDs.

In spitting distance of Ailsa Craig

On approaching the east corner of Ailsa Craig, we saw that a spit of fresh gravel had formed since we were last there only 6 weeks before. This spit often appears after strong NE winds.

We decided to land here as the stones were smaller than those on the main beach and were not covered in evil green slime.

 We enjoyed our luncheon on this stunning ...

 ...location before Donald and I set off...

 ...along the spit for the path to Ailsa Craig's summit.

At first I thought this was an eider duck's nest  on the stones beneath the lighthouse.
However, I thought their eggs were a uniform pale colour so I am not sure.

Once on the Ailsa Craig mainland, we left Phil and Jennifer to mind the boats and have a swim.

I lift my eyes to the isle of the birds.

The bank of fog slowly slipped away revealing Ailsa Craig in all her glory. As we approached this great rock in the Clyde...

 ...we felt a sense of increasing wonder, both at the cataclysmic volcanic event that created it and and at the teeming bird life that was swirling in the skies round it. Donald had taken the opportunity of the good weather and our company to make the crossing in his little boat.

 As we drew closer we could not help but lift...

...our eyes as the island and...

...its birds towered above us.

We paddled steadily on but with a readiness to duck.

After our wonderful meeting with Alistair Wilson, founder of Lendal Paddles, Phil, Jennifer, Donald and myself set off across a glassy sea in our respective craft and...

 ...soon left the Ayrshire coast behind.

Jennifer was enjoying the Cetus MV and was just about to streak ahead when all of a sudden, the VHF burst into life on Channel 16:

"Sécurité, sécurité, sécurité. All vessels, all vessels, all vessels, this is the Royal Navy. Live firing will commence at 0900 BST until 1100 BST in exercise area 73, Ailsa."

This generated some alarm but I knew that "Area 73 Ailsa" lay to the SW of Ailsa Craig and we were approaching the isle from the SE. However, a bank of sea fog rolled in, blotting out Ailsa Craig from view. We paddled steadily on but with a readiness to duck. All of a sudden, rounds of heavy automatic fire echoed out of the fog, Yikes!

Then at 1100 the firing stopped and HMS Mersey emerged from the mist to pass behind...

...Ailsa Craig where she reappeared with a surfaced submarine alongside. We continued on our way undisturbed by further shell fire.