I forgot the most important thing, follow the advice of the surgeon who placed it. They know how the procedure went and can best direct you. For some reason I left it out that in my first response,
In general,. if it is covered, it will integrate just fine. It is not different from normal bone healing. Keep things from irritating the site and you'll be fine. Implants fail because of things like smoking, bad surgical and restorative technique, poor systemic health, poor oral hygiene ,and over stressing the implant/implant site.. Nothing I have read in the literature would contradict a recreation depth dive. Bone healing is the same whether it is an implant, endodontic, or extraction healing. I wouldn't dive the day after surgery, but when the sutures over the implants are gone you should be good to go. If no sutures are used, and an exposed healing abutment is used, wait until the soreness goes away. Shouldn't be more than a week.
Bone grafts would be a different situation. No one can predict how they will heal, and I would wait at least a month. You'll be told if any grafting was required or done(I hope)
If in doubt, contact the library at ADA.org. They will have every research article published on implants, and the person answering the phone will get the pertinent journal article for you. They are extremely helpful.
To be honest, implants are some of the most trouble free and predictable procedures in dentistry if done properly. They either integrate or don't. When they uncover your implant and reverse torque it, it will either be restored if it is a success, or removed and replaced if the implant hasn't integrated properly and fails the torque test. The hardest part about an incisor implant is matching the porcelain shade.
The article referenced, although 8 years old, has good information. Not much has changed, other than that the Oral Surgeons are more confident with the success of immediate load implants in the right situations. I still prefer the surgeons leave a healing abutment, only because there is more control in keeping the implant area stress free while it integrates.. At 3-5 grand a tooth, I want the implant to be perfect. Makes everyone happy.
Go diving, and have fun. I don't know about the 5-8 week no dive rule came from. It may just be a conservative answer to a question that can't be answered definitively. Cheers