Thats not quite right - they can visit a number of places without a visa - to be exact .......
Andorra, Argentina, Albania, Bahamas, Barbados, Belize, Bolivia, Bosnia and Herzegovina, Chile, Colombia, Costa Rica, Croatia, Cyprus (Turkish side only....aka Turkish Rep. Of Northern Cyprus), Dominica, Ecuador, El Salvador, Fiji, Gambia, Georgia, Grenada, Hong Kong (special admin. area"¦ updated?), Indonesia, Iran, Jamaica, Japan, Kazakhstan, Kyrgyzstan, Macedonia, Malaysia, Maldives, Mauritius, Monaco, Morocco, Philippines, Romania, Saint Lucia, San Marino, South Africa South Korea Seychelles, Singapore, Solomon Islands, Swaziland, Sri Lanka, Thailand, Trinidad and Tobago, Tunisia, Tuvalu, Uruguay, Vatican City, West Samoa
Anywhere else they need a visa