So I've got my map working, however I can't quite figure out how to connect tiles, so that they make a smooth transition from one type to another.

Like from grass -> dirt -> sand -> beach -> water, stuff like that. Any suggestions on how to do it smoothly? Should I just make a tile for each type of transition, and use that on tiles that's connecting to other tiles of a different type?

The traditional technique for making tiles blend together smoothly is called "texture splatting".  I don't have a lot of insights into how to do it, but that should at least give you a very searchable term (I believe JGO even has a few posts on the topic)

@coltonoscopy, that's probably how I'll end up doing it! Thanks!

@sproingie, I think that'll be a little too advanced/overkill for this, but it's something I'll keep in the back of my mind for the future!

@theagentd, Eh? Google? What's that!? - I tried google, but didn't come up with such beautiful links as you did! I'll give them a read and then I should probably start making a map editor soon, or else I fear I'll have trouble actually testing it out.

And lastly, thanks for the help so far guys! Here, have some appriciation!