Bothwell Castle, located to the south of Glasgow, was one of the most important Scottish fortresses during medieval times and the War of Independence against the English (1296). In its time, it was as important as the castles of Stirling or Edinburgh. Built in the thirteenth century by the Murray clan, it has a huge tower to the south, much larger than most others of the period, known as DonJon. Today the castle is in ruins, although everything is fully visible. On sunny days, it's common for adults and children alike to reenact everyday scenes of medieval life. And the DonJon tower, even in pretty bad shape, is still astonishingly big. It's a shame that the castle is ruined, but it's still a great place to visit if your're interested in Scottish history.
Mugdock Castle was founded in the eighteenth century on the banks of Lake Mugdock, as the main seat of Clan Graham in what is today the county town of Stirling. Today it is in ruined, but still in fairly good condition from the south facade to the main tower. Once inside, you can see the internal structure and work out where the main residences were in the tower, as well as the stables, servants' quarters, kitchens and chapel. The Clan Graham underwent a major change in 1505 when they were declared Earl of Montrose, and the famous James Graham, first Earl of Montrose, was born in this room. He became famous for protecting Rob Roy from the Duke of Argyll. Despite being in ruins, is fairly well preserved and offers nice views over the lake, as the castle stands on a hill. Undoubtedly one of the jewels of this park.
The beautiful Castle in Loch Lomond is located on a hill opposite the lake. It is ideal for a walk and a piece where you can relax while enjoying beautiful views. On summer days you can bathe in its waters.
Culcreuch Castle is in the village of Fintry, 30 km from Glasgow. It looks like you're in the countryside with a garden, huge lands around a beautiful lake and a very green forest. The castle has a pub and a restaurant that you can use without having to stay. It's a XIV century building and one of the oldest hotels in Scotland and it's been in the cradle of Clan Galbraith for 7 centuries. It soften has weddings and there's a room dedicated to the ceremony as they are legally registered for weddings. It has very cozy romantic rooms and what the weather you'll be really happy. Sometimes they have a special offer such as two nights and two dinners (1 in the castle tower, another candlelit in the restaurant, for 200 pounds).
Culcreuch Castle is located in the village of Fintry, 30 km from Glasgow. It's in the heart of the countryside, with a garden and grounds surrounded by a beautiful lake and a dense forest. The castle has a pub and a restaurant that you can use even if you don't stay in the hotel. It is a fourteenth century castle, and was home to Clan Galbraith for seven centuries. Today it is a hotel and is used for weddings. It's a romantic place with comfortable rooms. They have a special offer for two nights, with a candlelit dinner in the dungeon and another in the restaurant.
The ruins of Craigend Castle are just outside Glasgow, in what is now a part of Mugdock Park. The castle was part of the Barony of Mugdock in medieval times, but was sold to the family of John Smith, a rich book seller, in the seventeenth century. His chain, John Smith & Son, supply all univiersities in Scotland. In 1816 Smith's son James expanded the mansion with Neo-Gothic designs by the architect Alexander Ramsay. Craigend passed through the hands of several private owners until the early twentieth century, when Sir Harold E Yarrow ran a private zoo here until 1954. A rather suspicious fire led to it falling into ruins, and in November 2012 it went on sale ... it will be interesting to see what happens to these ruins, which I find rather romantic.