Ramps My guinea pigs won't use the ramp

Does your ramp have sides. Tall sides will make them feel more secure going up. I just made a trail with their favorite veggie from where they were standing all the way up to the top. Try to keep the veggies close together with maybe a .5 inch spacing. How steep is the ramp if its to steep they won't use it. Or you could try covering the ramp kind of like a tunnel. Just patient with them some may take longer than others. If one gets the hang of it the other should start to copy. Alot of guinea pigs learn from other guinea pigs.

Cover it with something, like an upside down cardboard box. When they get used to using it, you can take it away.

I tried the veggie spacing and my one guinea pig would walk up and grab it and then back all the way back down and eat it. I'll try covering it. Also, it's not super steep. The loft is at mid grid height.

Try the luring again, but when they are stretched out give them a nibble and then lure them higher. It might motivate them go all the way up. I rebuilt my ramp and one of my pigs couldn't figure out how to get up and this method worked.

The sides of the ramp look like they are curved in. Can you push them out a little?
Try draping a towel or blanket over the whole loft, they might not like being up high out in the open.

Sample:
(broken link removed)

Mine wouldn't walk up the ramp until I had sides on the ramp. The sides that I have go straight up, and they're line with fleece so that it's soft. Now they run up and down the ramp, no problem.

Mine seem to be ok with their fleece-coro-grid ramp, but it took awhile for them to learn to use it, while we urged them up and down it a number of times a day when freshies were served. I fed them their favorite veggies upstairs, and their beds are upstairs. I would put the guys at the bottom of the ramp and pet them while moving them up or down, manually (LOL), then pet them again while at the top/bottom, talking to them the whole while in the "Mama's got freshies" voice. They became used to the freshies being upstairs, and that was a big motivator. One of them uses it very freely now, though prefers the hayplay area downstairs, and the other one uses it only unwillingly/uncomfortably. We are redesigning the whole thing this weekend because the dominant one wants the whole setup for himself (upstairs plus downstairs) and is making the other one miserable AGAIN. The dominated one is losing weight at this point, so the "post-hormonal phase unification" (hoping their boy hormones had settled down) was kind of unsuccessful. We had this problem before, and separate cages were the only solution, so we are going back to that. The rescue ladywe'd gotten them from had tried to bond them once for us, but it didn't work. We just have a situation where one is very bossy and the other one is too afraid of him for them both to be comfortable. If dom-boar had a 14-room mansion, he'd take up the whole thing, LOL.

I agree with @lissie. I've rigged a cover for my loft because the girls don't like being up there out in the open.