1

I went from Cuzco to Puno and then Puno to Copa....so I'm not sure about Copa to Cuzco, but anyhoo here's what I did.

Cuzco-Puno (the same info could apply to Puno-Cuzco as well)
I just went to the main bus station in Cuzco. Here every bus company has a booth so there are many options. I chose Ormeno. Can't recall exactly how much I paid but I think it was about 20soles. Trip was very pleasant, fabulous views, and a nice straight road for once:-)))) Took about 5-6 hours I believe.
You could do the exact same to go from Puno to Cuzco...just go to the main bus station in Puno to buy your ticket.

As for Puno to Copa:
I just went to the main bus station in Puno...again, lots of bus companies to choose from, but I think there were only a few that went to Copa. I went with Titicaca...I had heard that they could be sketchy, but I had no trouble with them at all.
Before you get on the bus the bus dude will give you all the necessary paperwork for crossing into Bolivia...tourist card, etc. which you can fill out on the bus.
When you get to the border, the bus will drop everyone off at a $ changing place....make sure you change enough cash for your stay in Copa as there are no ATM's there...there are money changers, of course, and there might be a few places where you can arrange a credit card cash advance in Copa...after changin money, the bus will drive across the border while everyone goes through immigration. You walk first to Peruvian immigration. They will stamp and should keep your Peruvian tourist card (the one you get when you enter the country) They should also place an exit stamp INSIDE your passport...make sure they do or you will have trouble on the Bolivian side.
Then head over to Bolivia...they will ask for your passport and for the tourist card you filled out on the bus....not sure where you're from, but be aware that Americans require a visa to enter and that a Yellow Fever Vaccination certificate is apparently now required to enter Bolivia....they didn't ask me for a Yellow fever certificate (and I didn't have one), and no one I know was asked....rumor has it that this is just another thing they are bothering Americans for...but head's up anyways.
You get your tourist card (which you keep) and passport stamped by the Bolivians and then you get back on the bus that will take you to Copa.
It's not too complicated...just make sure you get the right stamps INSIDE your passport.
The entire trip took around 3-4 hours I think..anyways, it was not too long, and I think I paid around 20 soles, or something like that.
As for how much time you stay in Copa...I suppose that's up to you...I hung out there for 4 days...you can go to the isla on a day trip or stay there the night. All in all, Copa's a funky little place with a really nice vibe.
If you have any more questions, feel free to give me a shout.
Cheers,

2

Puno Copacabana

3

We've just done the Copacabana to Cusco bus journey.

We bought our tickets from Trans Titicaca Tours which are on the main street in Copacabana. We went for the Cama option and the tickets cost about 110 Bolivianos each. The bus leaves at 9am. First you get on a comfy but by no means luxury coach from Copacabana to Puno, and then a much better bus from Puno to Cusco.

It took us approx 3 hours from Copa to Puno (the boarder is approx 30 minutes from Copa, and our driver had some English and was very helpful), and then approx 7 and a half hours to Cusco from Puno). The guys who had gone semi-cama seemed to have a little trouble with seat reservations when we switched buses at Puno, but we didn't have any issues.

On the whole I'd recommend this company as although it was a long journey, and you could probably get cheaper, it was relatively hassle free.

Hope this helps.

James