Is 7 weeks after a tummy tuck with diastasis recti repair enough time to be able to workout, swim, or scuba dive?

 Always best to run these types of questions by your plastic surgeon, who knows exactly what was done, how you are progressing, what type of exercise you wish to return to, and is ultimately responsible for your care.
 Keep in mind that it may be several months before you reach your full strength and stamina.
Generally,  I ask my patients to start walking as of one after surgery.  Most patients are able to return to lower body exercises, such as the use of a stationary bike, 2 to 3 weeks after surgery.  I ask my tummy tuck patients to refrain from any heavy-lifting or strenuous exercise for 6-8 weeks to prevent any complications and ensure proper healing.    Abdominal wall workouts can usually begin about 2 to 3 months after surgery, depending on how the patient is progressing etc.I would suggest that you be very careful with returning to potentially "dangerous" strenuous activity such as scuba diving and/or swimming against a current.  For most patients, seven weeks postop would be to soon return to this type of strenuous activity.  Most of my patients will feel comfortable doing so after about three months.   Certainly, start off in a pool and listen to your body as you gradually increase your activity level.
 Best wishes. 

I would not allow a patient to be submerged in water until I was absolutely positive that the incision was healed.  This will take from 6 weeks to 3 months.  This is a question only your PS can answer during follow-up.Kenneth Hughes, MD, ABPS Board Certified Plastic SurgeonLos Angeles, CA