Trip to Murano, Burano and Torcello

There are tours that take you to those islands.
https://www.viator.com/tours/Venice/Excursion-to-Murano-and-Burano/d522-19287P1
https://www.viator.com/tours/Venice/Private-Tour-Murano-Burano-and-Torcello-Half-Day-Tour/d522-2495ABEX5

I took one similar to the second one. It was good.

We just got on the Vaporetto and went on our own. Not much in Torcello, but it's on the way to Burano - the lace island. Murano was ok, but we found authentic Venetian Glass at some tiny shops in Venice that were recommended by our B&B that we liked better.

Rick Steves' Venice Guide does an excellent job of explaining how to do this. We do it all the time. (Well, at least 5 or 6 times I can think of.) It takes us about 6 or 7 hours. We leave Venice shortly after 9:00 and go to Murano where we cruise the shops and visit a glassmaker we've come to know personally. Then we head to Burano, where we lunch, and finally Torcello. On each island we have followed Rick's self-guided tour. It is a wonderful day!

Be aware, if it is foggy the boats won't run, so check ahead on weather and pick the day that has the best chance of being sunny.

No need for an expensive tour. We just get on the Vaporetto and do it ourselves. Murano is good for walking about and having lunch. Burano is very pretty with all the pastel buildings. Usually takes about three quarters of a day.

Well, I don't want to utter heresy, but we took a boat to Burano and simply walked around for most of the day, going through commercial and residential areas. We spent an hour or so with a few local residents in a bar drinking red wine while a downpour moved through, then continued our exploration until dinner.
No guide.
No guidebook.
Just curiosity and a willingness to explore.
They're the best tools.

Thie nice thing about a guidebook is you can learn exactly what you are looking at, make sure you see the important historical and cultural sights, and learn something.

When yo get the vap to Burano, get off at Mazzorbo, the last stop before Burano. You can walk through a vineyard and over the bridge to Burano.

Coming back from Burano, if there is a long line for the vap, you might not get on the first boat. But if you walk over to Mazzorbo, they will always let you board.

The campanile on Torcello is worth the climb, gives a great view over the lagoon.

Arelis, I have also visited these three islands, on my own, each time I have been in Venice, the last times in 2013 and then 2014. No added cost for vaporettos, if you have a vaporetto pass anyway. My tips would be:
Murano is very commercial, but if you go beyond the commercial area, around the bend to the left, then over the (pedestrian?) bridge, and on to San Donato Church, that is a nice area, a beautiful church, and much more low-key. The Glass Museum is out that way too, as I remember. I also came across a nice little glass artisans' co-op shop, where I bought a couple beautiful reasonably-priced Murano-made glasses that I am enjoying right this moment, beside me on my windowsill. Also, in the main commercial area, some of the larger glass shops have "by invitation" showrooms with very beautiful and special pieces, often with prices of many hundreds or thousands of euros. If they don't invite you, ask if you can look. Probably not a good idea with small kids atow.
On Burano, there are some excellent seafood restaurants, fish risotto is famous there, often on the menu for a minimum of two people. If you stay for dinner, be sure to check the evening vaporetto schedule, and give yourself enough time to catch your boat.
Finally, on Torcello, it is about a ten minute walk each way from the vaporetto stop to the church complex, and give yourself enough time if you want to visit the church, campanile, etc. I remember there was a combo ticket for about 10 euros, and I felt I did not have enough time to justify that expense for just a few minutes, so I just looked at the outside. Still wishing I had an extra hour, next time I guess. That church is where Venice began!

Not only is Torcello the place where Venice began, but the mosaics in the church are very old and quite wonderful. Definitely allow enough time to see them. When we were there, at least 5 years ago, there was a very good restaurant on the way to the church. Sorry, can't remember the name, but there aren't many.

Torcello is one of my favourite parts of Venice and certainly my favourite lagoon island. Ever since I heard the silence and saw the beauty of the church I have always returned on every visit. I love not just the church but the little island too.

Here's another vote for the Rick Steves Venice book which lays this all out for you. I seem to recall that on one of the islands the ferry drops you off at one point, but the next ferry you will want to get on to continue the tour is in another location completely. That's the kind of thing you might miss if you try to cut-and-paste this yourself from web postings.

Happy travels.

Torcello is well worth visiting for the mosaics. Be sure to get the audio guide in order to follow the details. En route to the church is Trono di Atilla restaurant. When I was there, it was filled with local workmen, the waiter did not speak any English, food was delicious and inexpensive. When I returned to my hotel near San Marco, the front desk man gave me a big smile of surprise and approval when I told him where I had eaten lunch on Torcello.

Thank you all, Its been really helpfull!!!