Thanks for your prompt reply.
We would like to avail the private transfer.
Can you guide us how much shall be the rate for the same.
It is really easy to travel within Montenegro by buses Barbara. They generally do run on time and will get you from PG to ZB with no problems at all. There are several buses a day on this route.
Transfers are not necessary.
In May, there will still be a lot of snow at higher altitude. The weather also is unpredictable.Edited: 11 May 2018, 22:53
From someone currently in Zabljak:
It has been a really great start to the year so far and quite a lot of the snow has melted away. Major peaks are not reachable but there is still more than enough to fill a week long stay if you have the time.
We are currently having beautiful sunny days of 15degrees forecasts have been predicting rain but we have hardly gotten any.
Podgorica to Zabljak is a really easy and straight forward drive (via Niksic).