Loch Lomond itself has two routes that run up its shores. The main A82 Glasgow-Inverness trunk road runs up the west bank, and is a good quality single carriageway as far at the village of Tarbet, but then becomes extremely twisty and windy for the northern third of the shore. The east bank is less accessible, the small villages of Drymen and Balmaha being the two main bases for exploring the Loch’s eastern shores. The road only goes as far as Rowardennan and is barely double track beyond Balmaha: however it does provide access to Ben Lomond as well as several campsites. For anywhere beyond Rowardennan, you will need to either walk or use a boat - some of the cruise companies do call at the key points on the east bank that are north of where the road terminates.
ScotRail [url=http://www.scotrail.co.uk]]operate local trains frequently from [[Glasgow[/url]]'s Queen Street Station (Low Level) to [wiki=349fc8661394d8a1c104bc2e7d6199d8]Balloch[/wiki] which is at the end of the line. The station in Balloch is easy to find.
From [wiki=03cf54d8ce19777b12732b8c50b3b66f]Edinburgh[/wiki], take either the main 'Shuttle' service to Glasgow Queen Street (High Level), then go downstairs to Platform 8 to pick up the Balloch train described above. Alternatively, you can take the direct (but slower) train to Platform 8 directly on the Airdrie-Bathgate line that is bound for Helensburgh Central or Milngavie, and change to the Balloch service in exactly the same way - there is probably little difference in overall journey time.
Several trains run daily up the [wiki=32a3747ab2e7dd7b9df1b3b93091ed2d]West Highland Line[/wiki] between [wiki=d586293d554981ed611ab7b01316d2d5]Glasgow[/wiki] and [wiki=6e1eab3b8657c93fd95a3280469eb281]Oban[/wiki], [wiki=586e5fa25c16bd09e3e9cfc7cc269360]Fort William[/wiki] and [wiki=f88d7cd42561687a9a23a1e64012b799]Mallaig[/wiki] which stop at [wiki=cc10224fbf00946d6de810469d713510]Tarbet[/wiki] and [wiki=1686c48165d86aabbb5120ac84756945]Ardlui[/wiki] on the north-west shore as well as [wiki=3ec3bd9f735516cc04e38f6881030662]Crianlarich[/wiki] and [wiki=729ceb2e328275cef5622aa2c562a654]Tyndrum[/wiki] in the northern part of the park. These leave from the upper level of Glasgow's Queen Street station.
The Caledonian Sleeper from [wiki=59ead8d1e124ccfb79f3ace06f43e703]London[/wiki] also runs up here - see the ScotRail website for further details.
Buses run frequently between [wiki=349fc8661394d8a1c104bc2e7d6199d8]Balloch[/wiki] and [wiki=d586293d554981ed611ab7b01316d2d5]Glasgow[/wiki].
The First Group bus service towards Balloch picks up passengers at the bus stop opposite McDonalds at Jamaica Street. A full day unlimited travel ticket costs about 4 pounds.
Several Citylink [url=http://www.citylink.co.uk]]buses a day between [[Glasgow[/url]] and [wiki=74d4a0f5844daf6cdca27426bf010aa4]Campbeltown[/wiki], [wiki=6e1eab3b8657c93fd95a3280469eb281]Oban[/wiki] or [wiki=586e5fa25c16bd09e3e9cfc7cc269360]Fort William[/wiki] and the [wiki=881f32366cabc700634e3df10bc7bee9]Isle of Skye[/wiki] travel along the western shore (A82) of the Loch. These will stop at all bus stops and laybys north of Balloch, including Luss, Inverbeg, [wiki=cc10224fbf00946d6de810469d713510]Tarbet[/wiki] and [wiki=1686c48165d86aabbb5120ac84756945]Ardlui[/wiki]. Be advised that prices can be expensive if bought on the bus at the time of travel, for example a single from Balloch Roundabout to Luss can cost £6+.
To enjoy the nature, it is best to go by bike. There's a (relatively!) well-maintained and signposted cycleway from Glasgow to Balloch called National Route 7. A good place to join it is Bells Bridge over the Clyde by the SECC (Scottish Exhibition and Conference Center). It's a fairly flat 20-25 miles.
Buses run along the Loch, but not that frequently (see above). You should check the departure-times first, as timetables are not usually available at the stops. The National Park Authority publishes a timetable of all the buses and ferries [http://www.lochlomond-trossachs.org/images/stories/visiting/pdf/ActivitiesLeaflets/Exploring%20the%20Park.pdf] 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 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 [wiki=597184b2feedaee46f3ea46be19e3abf]Ben Lomond[/wiki] mountain).
Rowardennan Youth Hostel, Rowardennan, 0870 004 1148. Located at the banks of Loch Lomond, it can be used as a base to climb Ben Lomond. £10.50-12.00/5.00-9.00 (Adult/Child). Opened March-October. SYHA information and booking: [http://syha.org.uk/syha/web/site/Hostels/Rowardennan.asp].
Cameron House on Loch Lomond, A82, 01389 755565 [http://www.devere-hotels.co.uk/hotel-lodges/locations/cameron-house.html]. Cameron House on Loch Lomond is a five star Scottish Baronial Mansion on the banks of Loch Lomond. The resort has four restaurants, an 18-hole Championship golf course, a luxury resort spa with rooftop infinity pool and an available range of outdoor pursuits.