Loch Lomond and The Trossachs National Park straddles the two regions of the Scottish Highlands and the Central Belt of Scotland, one of the four home nations of the United Kingdom.
The park is divided into four distinct areas: Loch Lomond, The Trossachs, Argyll Forest, and  the Breadalbane. It's to the North West of Glasgow.
The Loch Lomond and the Trossachs National Park became fully operational on 19 July 2002 and was officially opened by Princess Anne on 24 July 2002.
The National Park encompasses around 720 mi² (1,865 m²) of land including the Loch Lomond area as well as the Trossachs region.
Flora and fauna
There are three national park visitor centres:
- National Park Gateway Centre, Loch Lomond Shores, Balloch, ☎ +44 845 345 4978 (firstname.lastname@example.org). A state-of-the-art interpretation centre exploring the nature, geology and social history of the National Park
- National Park Centre, Balmaha, In the pretty village of Balmaha, East Loch Lomond, ☎ +44 1389 722100. A stop-off point for walkers on the West Highland Way, local produce and top-up supplies
- National Park Centre, Luss, ☎ +44 1389 722120. Find out about Loch Lomond's islands, the conservation village of Luss, and local walks like the village paths and Luss Glen
The following communities are within the National Park boundaries:
Aberfoyle, Arrochar/Tarbet, Balloch, Balquhidder, Callander, Inversnaid, Kinlochard, Lochearnhead, Lochgoilhead, Luss, Kilmun, Port of Menteith, Rowardennan, Stronaclachar, Tyndrum
The following communities are located nearby:
Doune, Dunoon, Dumbarton, Helensburgh, Inveraray, Milngavie
- Balloch at the south of Loch Lomond has trains from Glasgow Queen Street (low level platforms), taking about 50 minutes with generally two trains per hour.
All of the above trains are operated by ScotRail .
- The A82 road up the shore of Loch Lomond is used by the Citylink  914, 915 and 916 buses (4-6 per day depending on season) from Glasgow to Fort William and the Isle of Skye. In addition, the summer-only 977 bus from Glasgow to Oban uses this route, heading west at Tyndrum.
No permit is required to enter the park or explore on foot, by bicycle or by road. Permits may be required for fishing, or some boat use.
The National Park Authority publishes a timetable of all the buses and ferries  which may be available as a booklet locally.
If you're driving, mind that the road along the northern part of Loch Lomond is pretty narrow for the traffic it has.
Sightseeing trips by boat on Loch Lomond run from Loch Lomond Shores near Balloch.
There is also a useful passenger ferry between Inverbeg (served by Citylink buses) and Rowardennan (at the foot of Ben Lomond mountain).
The steamship SS Sir Walter Scott offers cruises on Loch Katrine in the Trossachs. There are connecting buses from Callander and Stirling for some services.
- Queen Elizabeth Forest Park, (From Glasgow follow signs on M8 for Aberfoyle. From Stirling/Callander follow A81 to Aberfoyle via Dukes Pass), .
- Breadalbane Folklore Centre, overlooks The Falls of Dochart at the western end of Killin (easily reached from Aberfeldy and Kenmore (via the A827 along the shores of Loch Tay), and from Crianlarich and Lochearnhead (via the A85 and A827)). April to OCtober 10AM - 5PM. discover the story of Scotland's 'High Country' Adult £2.75, Child (5-16) £1.80.
- Kilchurn Castle has a four-storey tower and was built by Sir Colin Campbell in XVth century, 1st of Glenorchy. The ruins are some of the most picturesque in Scotland with spectacular views down Loch Awe. Location: North/east top of Loch Awe, 2.5m west of Dalmally via A85.
- Hike the West Highland Way, . the West Highland Way walking path journeys through some of the finest scenery that Scotland has to offer. Traveling from Glasgow (Milngavie) to Fort William, it crosses the National Park and runs the length of the eastern shore of Loch Lomond.
- Bike the West Loch Lomond Cycle Path, . This is a 16.5 mile route between Balloch and Tarbet
- Do go Fishing, .
- Briar Cottages, Lochearnhead (M9 Stirling J10, A84 to Lochearnhead, A85), ☎ 01567 830443, . Briar cottages are holiday cottages for 4 plus 1 pet in the village of Lochearnhead Perthshire.
- Lake of Menteith Hotel (Lake Hotel), The Lake of Menteith Hotel Port of Menteith Perthshire Scotland FK8 3RA (From either Edinburgh or Glasgow follow the motorway to Stirling. At Stirling come off at junction 10 signposted for Callander and The Trossachs (A84). Take this road for approximately 4 miles and take a left fork to Aberfoyle and Port of Menteith etc (A873). Once on this road follow it through Thornhill towards Aberfoyle for approx 9 miles and you will reach The Port of Menteith. Once in the village take your first left onto the B8034 and we are approx 200 yds on the right.), ☎ 01877 385258, . In The Trossachs National Park yet easily accessible, being an hour from Glasgow and Edinburgh and twenty minutes from both Loch Lomond and the ancient City of Stirling. You drive through some remarkable Scottish scenery and upon reaching Port of Menteith, the Lake unfolds before you with the hotel nestling lakeside.