Go by train, it is a must!! If you go by train, stock up on food and drink, but not to much it is fun to buy food on the station where the train stips long enough and get the local food, some of the food is still warm so you will not starve!!!!
Tram, walking taxi bus
The best way -- for the adventurers out there -- would be to take the Trans-Siberian Railroad from Vladivostok or from Beijing, China. This would be ideal and would allow you to see everything along the way. It is possible to break up a journey on the Trans-Siberian and stay in Irkutsk (three days...I think). This would be the best but, as far as I know, most tourists travel to Irkutsk by plane from Moscow, Vladivostok, China (rarely), or from Japan. I travelled to Irkutsk from Niigata Airport in central Japan and flew directly (there is sometimes a stop-over in Vladivostok) but this is during the summer months only.
I did most of my 'travelling' by bus (which was arranged) or by taxi. If travelling by taxi, some Russian is NECESSARY and you must work out the price before getting in or you must take a metered taxi, even though I saw few of these. The best way is to get the hotel to arrange it for you....but it will cost you a small 'fee'.
A boat trip on Lake Baikal can be quite nice - but you will have to wait until the ice melts - and that can take quite a while!!!
First time we were there in March - and the lake was still frozen!!
The bus station is the other side of the town of the railway for inter-urban travel, close to where to the Decembrist Houses
The train station is opposite side of the river to the centre of the town.
5,185 km by rail from Moscow
"Bargusin" is the biggest and most popular ship at Baikal.
It takes 200 passengers.
You can take it if you are going to Peschanaya bay or to Ust'-Bargusin.
this an other gret thing of the russian trains they have a sanovar, so you cab make coffe thea and soup!!