If you are traveling to Alibaug from Mumbai you have the option of traveling by the ferry. Ferries are available from Gate way of India round the year but for monsoons.
Best Route from Kolhapur to Alibaug
Kolhapur - Umbraj - Patan - Chiplun - Khed - Poladpur - Mangaon - Vadkal - Poinad - Alibaug
Best Route from Pune to Alibaug
Pune - Mumbai - Express way - Lonavala - Khopoli - Pen - Alibaug
Best Route from Mumbai to Alibaug
Mumbai - Panvel - Pen - Alibag (110 kms)
If you are traveling via Lonavala try the chikki and berries. Lonavala is also famaous for the 'misal pav' the very own maharashtrian snack!
Mandwa jetty is where the ferries alight. There are A/C and non A/C ferries and they also have bus service from Mandwa to Alibaug bus depot and different beaches in Aliback back to Mandwa.
Distance from Major cities..