If you want an amazing, impactful experience in Thailand-look no further. Working with LDC was a life changing experience. First of all, P. Manop (the founder) is one of the kindest, most hardworking men I've ever met. He will really set you up and take care of you and he really cares about the work that LDC does. I still stay in contact with him today and would trust him with my life. I never once felt unsafe and I always felt supported by and comfortable around staff.
LDC gives you the chance to live with a hilltribe community (great way to experience a new culture) and work alongside them and P. manop. The work I did was in construction but I also got some agriculture and english teaching volunteer experience as well. I volunteered with LDC through a third party which ended up being a more expensive way to do it. I would recommend volunteering directly through LDC to avoid unnecessary fees.