Hi Singgirl,
Diving with a single fin may not present balance issues as pronounced as you allude to. If your husband locks his right leg behind his left when finning, he'll probably work through any balance issues fairly quickly and may be surprised by the amount of power he can generate off the one fin. Getting into and out of the water may be your real challenges, but depending on the boat (or even shore), could prove to be quickly accommodated once you actually start and end your dives.
Does your husband have a prosthetic? If so, can it hold up to extended salt water exposure?
A quick google search pulled up this possibility:
First Step 2001: Are You Ready For A Prosthesis?: Putting Your Best Foot Forward
If the information here is a little outdated, perhaps it can help point you in a better direction.
It may seem counter intuitive given that he can still use his left leg, but if a prosthetic is out of the question, another consideration would be the using his arms & hands for propulsion with the assistance of webbed gloves.
Diving with a single fin may not present balance issues as pronounced as you allude to. If your husband locks his right leg behind his left when finning, he'll probably work through any balance issues fairly quickly and may be surprised by the amount of power he can generate off the one fin. Getting into and out of the water may be your real challenges, but depending on the boat (or even shore), could prove to be quickly accommodated once you actually start and end your dives.
Does your husband have a prosthetic? If so, can it hold up to extended salt water exposure?
A quick google search pulled up this possibility:
First Step 2001: Are You Ready For A Prosthesis?: Putting Your Best Foot Forward
If the information here is a little outdated, perhaps it can help point you in a better direction.
It may seem counter intuitive given that he can still use his left leg, but if a prosthetic is out of the question, another consideration would be the using his arms & hands for propulsion with the assistance of webbed gloves.