How to climb a giant tree without a hole in the trunk?

Everyone has their own hobbies, I like climbing trees, it's very interesting. I have conquered the trees around my house. But there is 1 tree I don't know how to climb safely. This tree is about 30 feet tall, without holes, with large branches about 5 feet above the ground. Can you help me with how to climb this tree?

Climbing trees with no branches can be difficult, but as long as you do it safely, it can also be really fun! There are a couple of approaches you can take -- the front-foot technique and the frog technique. The front-foot technique is best for skinny trees, like coconut trees. The frog technique can be used for trees that are a little wider. Use caution, since you can get hurt climbing any tree, branches or not.