Sickday is also listed under the following categories: Standard Yellow Pages Heading (SYPH) Categories:

• Sporting Goods
• Surfing Instruction

North American Industry Classification System (NAICS) Categories:

• Sporting Goods Stores
• Sports And Recreation Instruction > Surfing Instruction

Standard Industry Classification (SIC) Categories:

• Sporting Goods And Bicycle Shops
• Amusement And Recreation Services, Nec > Beach & Water Related Services > Surfing Instruction