1. MEMBERSHIP COST
- Marriott Hotel (The Spa) / QAR 4,800
- Shiraton Hotel / QAR 5,900
- The Four Seasons Hotel / 12,000 QAR
- Dana Club / QAR 10,000
- The InterContinental / QAR 6,500
- Diplomatic Club / QAR 7,000 (i guess so)
- The Ritz-Carlton (The Spa) / QAR 11,000
2. SWIMMING POOL & GYM
- Marriot: Quite small & no indoor pool / Gym is quite small too
- Doha Club: Big pool but no indoor pool / (have no idea about gym)
- Shiraton: Meduim pool but no indoor pool / (have no idea about gym)
- Four Seasons: Meduim pool & no indoor pool/ small gym
- Dana Club: Big outdoor pool & small indoor pool/ meduim gym
- InterCon: Big pool but no indoor pool/ meduim gym
- Diplomat: small pool but no indoor pool/ meduim gym
- Ritz: Meduim outdoor pool and big indoor pool/ meduim gym
3. TENNIS COURT
All of the clubs have outdoor courts except for Ritz (indoor courts)
There are frustrating things in some clubs;
- Marriott: You have to wait for membership acceptance (a week or more)
- Doha Club: Singles under 30 years old are not accepted
- Shiraton: Fully booked and have to wait until year 2008
- Four Seasons: haveing problems with tennis courts ground and no indoor pool
- Dana Club: They don't accept singles.
- InterCon: Fully booked (you have to wait for 5 months) and crowded
- Diplomat: expensive for such small and limited facilities
- Ritz: Beach is not available (because of constructions of Lagoon Plaza)

Ramada: http://www.ramadaplazadoha.com/health_leisure.php (link with application form)
Sheraton Hotel: http://www.sheraton-doha.com/
The Four Seasons Hotel: http://www.fourseasons.com/doha/spa.html
The InterContinental: http://www.ichotelsgroup.com/h/d/ic/1/en/hotel/DOHHA/amenities
Diplomat: http://www.thediplomaticclub.com/en/main/activities.php
Ritz: http://www.ritzcarlton.com/en/Properties/Doha/Spa/Faqs.htm
Dana Club: http://www.orangeqatar.com/mysites/aldana/

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the info above is a bit old, but could be a good start.

Yasir.