Loch Katrine is a picturesque freshwater loch located in the Trossachs area of the Scottish Highlands. It's about 8 miles long and 1 mile wide at its widest point, making it a popular spot for tourists and day-trippers from Glasgow. Apart from its scenic beauty, Loch Katrine also serves as a reservoir for Glasgow's water supply. You can enjoy fishing for trout here during the spring and autumn seasons. Plus, it's the setting for Sir Walter Scott's poem "The Lady of the Lake" and an opera by Gioachino Rossini called "La donna del lago." So, whether you're into fishing, hiking, or just soaking up some stunning Highland views, Loch Katrine has got you covered!