You’ll need a fair bit of space in your living room to share a home with these aquatic monsters. From garden ponds filled with Koi Carp to the humble goldfish bowl – the UK is a nation of fish lovers.

Kelly Anne has over six years of experience with reporting and editing in the personal finance space. Her work has been featured in national publications including Reader's Digest, CNBC and Forbes.

Clients can fish for large trout, stay in a riverside cabin and enjoy a remote corner of the state. Mitchell has spent much of his career guiding on the Yakima River, which has garnered the press ...