1. Lucky Bay, Australia
2. Source D’Argent, Seychelles
3. Hidden Beach, the Philippines
4. Whitehaven Beach, Australia
5. One Foot Island, Cook Islands
6. Trunk Bay, US Virgin Islands
7. Honopu Beach, Hawaii
8. Reynisfjara Beach, Iceland
9. Navagio Beach, Greece
10. Balandra Beach, Mexico
11. Cala Goloritze, Italy
12. Pipe Creek Sandbar, Bahamas
13. Pink Beach, Indonesia
14. Grace Bay, Turks and Caicos Islands
15. Gardner Bay, Ecuador
16. McWay Falls Beach, California
17. Turquoise Bay, Australia
Australia scored four beaches in the top 50 worldwide (pictured is Whitehaven Beach)
18. Le Morne Beach, Mauritius
19. Baia do Sancho, Brazil
20. Seven Mile Beach, Cayman Islands
21. Lanikai Beach, Hawaii
22. Maya Bay, Thailand
23. Calo des Moro, Spain
24. Kelingking Beach, Indonesia
25. Meads Bay, Anguilla
26. Flamenco Beach, Puerto Rico
27. Cayo Arena, Dominican Republic
28. Little Hellfire Bay, Australia
29. Anse Lazio, Seychelles
30. Vaeroy Beach, Norway
31. Horseshoe Bay, Bermuda
32. Myrtos Beach, Greece
33. Hidden Beach, Mexico
34. Grand Anse, Grenada
35. Xpu Ha Beach, Mexico
36. San Jose Bay, Canada
37. Matira Beach, French Polynesia
38. Capriccioli Beach, Italy
39. Pasjaca Beach, Croatia
40. Boulders Beach, South Africa
41. Salines Beach, Martinique
42. Champagne Beach, Vanuatu
43. Praia de Marinha, Portugal
44. Balos Beach, Greece
45. Achmelovich Beach, Scotland
46. Kaputas Beach, Turkey
47. Radhanagar Beach, India
48. Varadero Beach, Cuba
49. Piha Beach, New Zealand
50. Pink Sand Beach, Bahamas
Source with photos of each beach can be viewed here.