We are working on a seastead design that will have a 40 by 16 foot living area above the water. There will be 4 foot diameter legs/floats/columns that are about 24 feet long going out from from the 4 corners of living area and down into the water at 45 degrees, with half of each column under water. The legs/floats/columns will probably be made from 1/4 inch thick duplex stainless steel on the sides and 1/2 inch thick on the dished ends. They will have some modest pressure like 10 psi inside. The bottoms of the floats will make a rectangle about 50 feet wide and 74 long. From the bottom of each leg there will be 2 cables going to the adjacent corners. The boyancy force is lifting up and the leg pushing against the platform leaves an outward force that the 2 cables pulling in counter, so the leg ends up staying in place. There will also be a cable making a rectangle between the bottoms of all the legs so we have some redundancy in case one cable breaks. The seastead is about 36,000 lbs I think but this is NOT a normal boat hull shape, it is more like a tiny oil platform as far as drag. We expect to use 4 low speed submersible mixers with 2.5 meter diameter propellers as thrusters, one on each leg/float. There will be lots of solar and battery. This should move at around 0.5 to 1 MPH plus any help from careful use of eddies and currents. We want to have a trailer hitch ball, or maybe a pintel hitch, at the front and back center of each seastead that we can install a rope bridge that goes between 2 seasteads. There will be a rope bridge that can be installed between two seasteads using a hitch on each one so one person at a time could go between the seasteads. It can also just be used to tow a seastead that has had trouble. Imagine we have two hand rail ropes that are taking the tension and then suspended below them a third rope for walking on. The end of the hand rail ropes will have a metal triangle with one point having a hitch connection to connect to the seastead and the opposite side keeping the two ropes apart with one rope attached to each of the other two points on the metal triangle. Imagine a single 250 lbs person is on center of this 40 foot rope bridge. How much sag is there if there is 2500 lbs total tension? How much if 1000 lbs total tension? Imagine the 4 motors in front seastead are thrusting at 750 lbs each for a total of 3000 lbs and the motors on the seastead in back are off. The two seasteads have the same amount drag so half the thrust will be used up on each, or 1500 lbs on each. If the second seastead has 1500 lbs of drag and the pull is coming from the rope bridge then the tension on the rope bridge is 1500 lbs. How hard would it be to send 6000 watts of power from the following seastead to the leading seastead? How do we do it so it does not try to send far more than 6000 watts? Imagine we want the rope bridge to be made out of Nylon so it has plenty of stretch in case a wave pulls on one seastead before the other and we want it to have 15,000 lbs break strength. How much do you think it would weigh? How much do you think it would cost? What size trailer hitch or pintel hitch would be rated for 15,000+ lbs? If one person attaches one end of the bridge to the hitch on his seastead and then takes a lead line and walks down the float on his seastead while someone on the other seastead walks down the stairs on the leg on his seastead the two people should be within rope throwing distance. After the second guy catches the lead rope he can pull up his end of the bridge and attach it to the hitch on his seastead. Then the front seastead can start pulling on the brige to give it the tension. It probably is not too hard to setup. Once there people can go back and forth between the two seasteads. Probably this works for 3 or 4 connected together in moderate waves, right? So you could have a real seastead community. The people setting up the seastead should probably have a safety rope attached to them before they they walk down the legs and work on setting up the bridge. I have some land by a rocky shore in Anguilla where I think it is deep enough for the seastead just 30 feet out. If I had a concrete fixture on shore with the right kind of hitch for the rope bride it may be reasonable to connect the bridge between the seastead and shore. The wind is blowing away from shore so the natural inclination would be for the seastead to be pulling on the bridge if it were connected to shore at this spot. Try to draw an image with two seasteads and rope bridge like the above between them.