Journey through South East Asia: Discover Indonesia, Singapore, Thailand and Japan

Hello everyone :) We are Andy 19, Jelena 20 and Marvin 23 and we want to experience some unforgettable moments before we start our studies. We are looking for 1 more person to accompany us. We have saved our money for a long time and have a budget of 2500-3000€. We plan to travel for 1,5 month and visit 100% Bali and Japan in this time. We plan to start with a backpack in Bali and then work our way up through Indonesia to Singapore and Thailand. From Thailand there are cheap flights to Japan too. The length of stays are variable and we are most interested in the food, culture and experiences such as learning to surf, diving in the tropics or visiting unique places. In Bali you can stay super in cheap Airbnbs, which look stunning. Of course it should be budget, but I find that if you turn every penny, you quickly forget to just enjoy this unique time. In general, we are very open to all suggestions. Planning is done via Teams/Zoom to discuss and Google Maps where everyone can mark their private highlights. We are very flexible in our planning. What is included in the price? The cost covers transportation between destinations and also accommodation in hostels, airbnbs, etc so depending on what is available and makes sense. We don't want to travel completely low budget and also want to mingle every now and then, for example to explore Singapore in the evening. Therefore, we try to save as much as possible on transportation and there you can split the costs very well. We would be very happy about travelers about our age, which after the long travel restrictions times have desire for an adventurous trip to South-East Asia. If you have any worries or concerns about a big trip, then it is normal as we are also worried. But we think a group of 4 is optimal to share costs and plan efficiently so we can complement each other.