Start your trip by wandering around Baku Old City, a UNESCO world heritage site, and explore the narrow streets, traditional architecture, mosques that pay tribute to Azerbaijan's rich history, and taste some local cuisine at the 15th-century Palace of the Shirvanshahs.
Get your morning started with a drive to see Mud Volcanoes, a unique geological phenomenon that can be found in Azerbaijan, and explore Yanar Dag Fire Mountain, an unending flame that has burned continuously for over 65 years. End your day with some local drinks in local bars around Baku.
Take a tour around Gobustan National Park to see prehistoric rock paintings, mud volcanoes, salt formations, and many other geological wonders. Additionally, you can take an off-road tour or watch a football match of local teams.
Hit the powder on the slopes of Shahdag Mountain Resort. Skiing, snowboarding, and tubing are a few of the enjoyable activities available here. A night spent partying in local bars around the ski resort is also a must-do activity.
Relax near the Caspian Sea while sunbathing and drinking local beer at the Long Beach and Mardakan Beach resorts.
Visit the Heydar Aliyev Center, where the country's culture is showcased brilliantly. Head down to Baku Boulevard afterward, which is a long promenade alongside the Caspian Sea, where you can experience live music, food, and performances. Partying on your last night at a few selected bars to complete the Bachelor party is recommended.
If you have more time, you can also visit some nearby cities such as Sheki, Ganja, and Quba. If you have less time, you can choose to skip either the Mud Volcanoes or Yanar Dag, though visiting both is highly recommended. Always have cash and be ready to negotiate prices. Be aware of opening and closing times of the places you plan to visit. Finally, do try famous Azerbaijani cuisine and drinks.