Small plunge pools design ideas are the perfect option for people who have limited outdoor space. This type of pool will give you an authentic experience even if you have the smallest backyard and you will be able to take advantage of the many benefits that these pools provide. Small plunge pools design ideas â€“ awesome small backyard pools Please note: You are currently browsing img tropical landscaping ideas landscaping network that is 698x351px in size. This image is listed in back garden pool ideas category. Small plunge pools design ideas awesome small backyard pools, 698x351 in 80.67 KB.