Do you have any idea now how much one or both of those lenses could cost you? Might be much more than you are anticipating! Have you thought about this?
Cell phone photography is fun but it is really very different in many ways from photography with other kinds of cameras and lenses. Are you aware that if you buy, say, a Canon DSLR, that you are also in essence buying into a "system," meaning that you'll need other Canon lenses that will work with the particular "mount" on the camera body you choose, and also that shooting with lenses which come in different range sizes also means that using each requires knowing how to get the best out of each, and also that "speed" matters? (Look it up if you don't know what I mean by this.).
I second the recommendation for a "bridge" camera. Although I have a Nikon DSLR with various lenses and also a Sony mirrorless Nex-7, again with various lenses, this past summer I purchased a "bridge" camera for a specific trip and for specific reasons. I really didn't expect to wind up loving the thing as much as I do and/or using it nearly as much as I have been in the months following.... Surprisingly, I've hardly touched my other cameras and lenses. This "bridge" camera is a real gem and it not only has a very nice range in terms of 35mm equivalency (24-600mm) but it also is quite convenient in terms of NOT having to hastily try and swap out lenses in rapidly-changing situations, awkward situations or in places where weather or local conditions (blowing sand at the beach, for instance) could cause major problems. It still has all of the controls one needs in order to achieve the impact and effect one wants out of an image. The one-inch sensor is larger than that found in cell phone cameras but not as large as found in most M4/3 cameras, much less digital SLRs which are either using APS-C (in Nikon terminology, DX) lenses or are full-frame. I had been concerned about this when I first got the "bridge" camera, thinking that most of my images might not be all that satisfactory, but was really quite pleasantly surprised at the general quality of many of the images I have shot with it so far. That's me, though: YMMV.
If you have no other previous photography experience other than shooting with a cell phone, I strongly recommend that you take a look at "Bridge" cameras and consider purchasing one of them (they all have a fixed lens) rather than trying to get into a DSLR system, multiple interchangeable lenses and all the rest, which is going to involve lots of money and lots to learn, while presumably on a holiday trip you will really want to just enjoy yourself and come home with some pretty nice images..... A Bridge camera is "all-in-one" and they are definitely a step above a "point-and-shoot" camera and offer the opportunity to use many controls in order to achieve the effect and the image you want. Think about all of this....
My particular "Bridge" camera is Sony's RX10 M4 but there are others out there by other camera manufacturers as well. Check things out, go to a retail store (NOT a pawnshop!) and try a current-model camera or two in hand, see what you think, and also really pause for a bit and honestly assess and analyze what your current skill set and photography knowledge is and how much time you want to put into learning new techniques and skills, not only just prior to the trip but also, as may happen, does and can happen, "on the fly" right in the midst of a trip.....
In the end, what are your real goals for this trip? For enhancing your skills in photography? How much money and time can you really afford to put into this? Serious questions and something you need to consider, especially if budgetary considerations are an issue.